CN114906353A - Navigation Satellite Space Situational Awareness Method - Google Patents

Abstract

The invention provides a space situational awareness method for a navigation satellite. The navigation satellite combines space targets and electromagnetic environment monitoring capabilities to construct a spaceborne intelligent multiple situational awareness data processing system, and the system obtains the situational awareness information detected by the photoelectric detection load and the electromagnetic environment monitoring load. , obtain the ground support data and early warning information of the ground-based space surveillance system, and obtain the multi-satellite monitoring data and situational awareness information sent by other navigation satellites. , analyze the massive data of space and earth, predict the trajectory of space debris and non-cooperative targets, identify the surface features of space debris and non-cooperative targets, independently determine the threat level of space debris and non-cooperative targets, generate and broadcast early warning information, and generate evasion strategies , control the spaceborne high-thrust engine to maneuver to avoid.

Description

Navigation Satellite Space Situational Awareness Method

technical field

The invention relates to the technical field of autonomous confrontation of spacecraft, in particular to a space situational awareness method for navigation satellites.

Background technique

Space situational awareness refers to the understanding and perception of all events, threats, activities in space, and the current state of various space systems, so that command decision-making and operators can obtain and maintain space advantages in the fierce space game. In a broad sense, ballistic missiles temporarily flying through space, satellites working in high and low orbits, abandoned satellites and space debris, and various micrometeoroids in near-Earth space are all objects of space situational awareness.

As a high-value space facility, navigation satellites operate in medium and high orbits in near-Earth space, and are not easily attacked by ground-guided weapons and high-energy weapons, but they cannot be ruled out by space debris or space-based anti-satellite weapons. The navigation system has the characteristics of channel disclosure, information format disclosure, signal frequency disclosure, and coding method disclosure, etc. It has strong navigation location service capabilities and is also vulnerable to various types of attacks. In order to improve the survivability of the navigation system, it is necessary to improve the defense capability of the navigation satellite to effectively resist and resolve potential malicious interference and damage, so as to ensure accurate and reliable navigation and positioning service capabilities.

The autonomous confrontation technology of high-value space facilities based on situational awareness has become an important development direction in the aerospace field in recent years.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a navigation satellite space situational awareness method to solve the problem that the existing navigation satellite is extremely vulnerable to the attack of space debris or space-based anti-satellite weapons.

In order to solve the above technical problems, the present invention provides a navigation satellite space situational awareness method, including:

Navigation satellites combine space targets and electromagnetic environment monitoring capabilities to build a spaceborne intelligent multi-situational awareness data processing system;

The spaceborne intelligent multi-situational awareness data processing system obtains the situational awareness information detected by the photoelectric detection payload and the electromagnetic environment monitoring payload;

The spaceborne intelligent multi-situational awareness data processing system obtains the ground support data and early warning information of the ground-based space surveillance system;

The on-board intelligent multi-situational awareness data processing system obtains multi-satellite monitoring data and situational awareness information sent by other navigation satellites;

The spaceborne intelligent multi-situational awareness data processing system forms massive data of heaven and earth according to situational awareness information, ground support data, early warning information and multi-satellite monitoring data;

The spaceborne intelligent multi-situational awareness data processing system analyzes the massive data of space and earth, predicts the trajectories of space debris and non-cooperative targets, identifies the surface features of space debris and non-cooperative targets, independently determines the threat level of space debris and non-cooperative targets, and generates And broadcast early warning information, generate evasion strategies, and control spaceborne high-thrust engines to maneuver and avoid.

Optionally, in the navigation satellite space situational awareness method, it also includes:

The use of navigation satellites for systematic, continuous monitoring and information collection of space targets or sources of electromagnetic interference;

Use navigation satellites to integrate data of multiple attributes, multiple time periods, and multiple observation sources of targets, as well as data from ground systems;

Through onboard autonomous data processing, the target's position, velocity, temperature field, size, shape and surface characteristics are identified to generate early warning information;

It broadcasts early warning information to ground systems and other satellites through satellite-to-ground and inter-satellite links, and independently determines the target threat level, thereby generating evasion strategies and anti-jamming strategies, and mobilizing on-board resources for implementation.

Optionally, in the navigation satellite space situational awareness method, it also includes:

In response to international space confrontation threats, navigation satellites conduct autonomous survival based on multiple situational awareness, including: passive protection and active protection;

The passive protection includes electromagnetic radiation shielding and camouflage to improve the survivability of satellite devices and satellite maneuverability, and to enhance the reliability of navigation satellites and the survivability of the information provided to defend against enemy attacks.

The active protection includes detection, tracking, identification, interception and destruction of the opponent's attack force.

Optionally, in the navigation satellite space situational awareness method, it also includes:

As the basis for space situational awareness, navigation satellites build a space-ground integrated information network through inter-satellite and satellite-ground links to achieve end-to-end communication and information sharing in any environment, at any time, and between any two points;

The navigation satellite uses two sets of high-speed and low-speed buses to realize the fast sending and receiving of situational awareness information between the satellite and the satellite, and the real-time transmission of the perception information in the satellite, and quickly transmit this information to the ground through the inter-satellite link or the satellite-ground link. Cataloging and analyzing targets collaboratively;

Navigation satellites have fast servo response capabilities to form early warning information, and real-time alarms are sent from the ground to improve the ability of satellites to survive autonomously.

Optionally, in the navigation satellite space situational awareness method, it also includes:

Multiple navigation satellites are equipped with photoelectric detection payloads with a wide field of view and electromagnetic monitoring payloads with high detection sensitivity to detect targets without prior information in time, so as to conduct situational awareness of space debris and non-cooperative targets and obtain situational awareness information;

A plurality of the navigation satellites perform inter-satellite transmission of the situational awareness information through an inter-satellite link; and a plurality of the navigation satellites send the situational awareness information to a ground-based space monitoring system through a satellite-ground link;

The ground-based space surveillance system forms early warning information according to the situational awareness information, and sends the early warning information to the operation control system;

The operation control system sends the early warning information to the navigation satellite;

A plurality of the navigation satellites construct a space-ground integrated information network through the inter-satellite link and the satellite-ground link, so as to realize end-to-end information sharing between any environment, any time, and any two points;

The navigation satellite enhances the reliability and survivability of the situational awareness information to resist the attack of the enemy through the integrated information network of space and earth; and after the navigation satellite receives the early warning information, it performs electromagnetic radiation shielding and camouflage to prevent The survivability and maneuverability of the navigation satellite are improved.

Optionally, in the navigation satellite space situational awareness method, it also includes:

Navigation satellites combine current space targets, technical capabilities of electromagnetic environment monitoring and future development trends to build a spaceborne intelligent multi-situational awareness data processing system supported by ground systems and navigation satellite constellations;

The spaceborne intelligent multi-situational awareness data processing system analyzes the electromagnetic interference from the ground and space according to the multi-satellite monitoring data, autonomously determines the interference characteristics, locates the position of the interference source, generates and broadcasts relevant information, and autonomously generates anti-interference signals. Disruption response strategies and implementation;

The spaceborne intelligent multi-situational awareness data processing system includes photoelectric detection payloads and electromagnetic environment monitoring payloads. Through the processing and analysis of massive data of space and earth, it can predict the trajectory of space non-cooperative targets, identify its surface features, and independently determine its threat level, and then generate And broadcast early warning information, generate evasion strategies, and use spaceborne high-thrust engines to maneuver to evade.

Optionally, in the navigation satellite space situational awareness method, the navigation satellite obtains situational awareness information to achieve autonomous survival, including:

Photoelectric detection and reconnaissance technology: The photoelectric detection load is installed on the navigation satellite to detect visible light, infrared, multi-spectral and hyperspectral, which is used to provide meter-level observation and optical space targets, and generate identification data in time;

Install phased array radar for early warning of non-friendly targets, search, capture and track targets, provide accurate target orbit and characteristic data, and provide early warning when the satellite system is threatened;

Equipped with a high-thrust engine, flexibly take measures to avoid it according to the type and degree of danger of the threat.

Optionally, in the navigation satellite space situational awareness method, satellite-ground joint interference detection and protection includes: establishing a rapid attack identification detection and reporting system on the navigation satellite to perform satellite-ground joint interference detection and interference protection, the The system is equipped with electromagnetic environment monitoring load and high-speed information processing network;

The electromagnetic environment monitoring payload is used for the detection of low-orbit non-friendly targets. When the navigation satellite is maliciously intruded by the enemy, it monitors the frequency and power of the interference signal, provides attack warning, threat identification and characterization, and quickly evaluates the attack, and works to the ground station. Humans provide early warning information to assist ground stations to better operate and interpret data downloaded from satellites in order to determine whether the satellite is attacked or affected by the space environment and make decisions;

The high-speed information processing network is equipped with the Space wire high-speed bus, which is used for real-time dissemination of perception information, and enables the navigation satellite to have the ability to work quickly with the ground-based monitoring system;

The rapid attack identification detection and reporting system also has the function of on-orbit reconstruction to cope with electromagnetic monitoring and target positioning in different interference environments.

Optionally, in the navigation satellite space situational awareness method, high-speed inter-satellite transmission of situational awareness information includes:

A high-speed data transmission network and efficient intra-satellite and inter-satellite transmission protocols are designed on the navigation satellite to ensure that the sensing data of any network node within the satellite and between the satellites can be transmitted in a timely and effective manner, using satellites in different orbits to achieve multiple coverage, real-time Quickly transmit a large number of monitoring targets and background characteristic measurement data to the ground-based space monitoring system, conduct unified dispatch and command, and make timely and effective responses to possible threats.

Optionally, in the navigation satellite space situational awareness method, it also includes:

Establish a rapid attack identification detection and reporting system on navigation satellites for satellite-ground joint jamming detection and jamming protection;

The rapid attack identification detection and reporting system is equipped with an electromagnetic environment monitoring load and a high-speed information processing network;

Using the navigation satellites in different orbits to carry out multiple coverage, real-time and fast transmission of a large number of monitoring targets and background characteristic measurement data to the ground-based space monitoring system for unified dispatch and command, and to respond to possible threats;

The ground-based space surveillance system catalogs and analyzes the situational awareness information to form early warning information.

Optionally, in the described navigation satellite space situational awareness method,

Multiple navigation satellites use wide-field photoelectric detection payloads and electromagnetic environment monitoring payloads with high detection sensitivity to detect targets without prior information in real time, so as to conduct situational awareness of space debris and non-cooperative targets and obtain situational awareness information;

A plurality of the navigation satellites perform inter-satellite transmission of the situational awareness information through an inter-satellite link;

A plurality of the navigation satellites send the situational awareness information to the ground-based space surveillance system through the satellite-ground link;

The ground-based space surveillance system forms early warning information according to the situational awareness information, and sends the early warning information to the operation control system;

The operation control system sends the early warning information to the navigation satellite;

A plurality of the navigation satellites construct a space-ground integrated information network through the inter-satellite link and the satellite-ground link, so as to realize end-to-end information sharing between any environment, any time, and any two points;

The navigation satellite enhances the reliability and survivability of the situational awareness information to resist the attack of the enemy through the space-ground integrated information network;

After receiving the early warning information, the navigation satellite performs electromagnetic radiation shielding and camouflage, so as to improve the survivability and maneuverability of the navigation satellite.

Optionally, in the navigation satellite space situational awareness method, it also includes:

The navigation satellite constructs a spaceborne intelligent multi-situational awareness data processing system in combination with space targets and electromagnetic environment monitoring capabilities;

The spaceborne intelligent multi-situational awareness data processing system obtains the situational awareness information detected by the photoelectric detection load and the electromagnetic environment monitoring load;

The spaceborne intelligent multi-situational awareness data processing system obtains ground support data and early warning information of the ground-based space surveillance system;

The on-board intelligent multi-situational awareness data processing system obtains multi-satellite monitoring data and situational awareness information sent by other navigation satellites;

The space-borne intelligent multi-situational awareness data processing system forms massive data of heaven and earth according to situational awareness information, ground support data, early warning information and multi-satellite monitoring data;

The spaceborne intelligent multi-situational awareness data processing system analyzes the massive data of space and earth, predicts the trajectories of space debris and non-cooperative targets, identifies the surface features of space debris and non-cooperative targets, and autonomously determines the characteristics of space debris and non-cooperative targets. Threat level, generate and broadcast early warning information, generate evasion strategies, and control spaceborne high-thrust engines to maneuver and evade.

Optionally, in the navigation satellite space situational awareness method, it also includes:

The spaceborne intelligent multi-situational awareness data processing system analyzes the electromagnetic interference from the ground and space according to the multi-satellite monitoring data, autonomously determines the interference characteristics, locates the position of the interference source, generates and broadcasts relevant information, and autonomously generates anti-interference signals. Disruption coping strategies and implementation.

Optionally, in the navigation satellite space situational awareness method, it also includes:

The photodetector payload detects visible light, infrared, multispectral and hyperspectral to provide meter-scale observation and optical space targets;

A phased array radar is installed on the navigation satellite. The phased array radar provides early warning to non-cooperative targets, searches, captures and tracks non-cooperative targets, and provides accurate target orbit and characteristic data. When the navigation satellite is threatened early warning.

Optionally, in the navigation satellite space situational awareness method, it also includes:

Establish a rapid attack identification detection and reporting system on navigation satellites for satellite-ground joint jamming detection and jamming protection;

The rapid attack identification detection and reporting system is equipped with an electromagnetic environment monitoring load and a high-speed information processing network;

The electromagnetic environment monitoring load detects the non-cooperative target in low orbit, and when the navigation satellite receives the interference signal of the non-cooperative target, the electromagnetic environment monitoring load monitors the frequency and power of the interference signal and evaluates the interference signal , providing early warning information to navigation satellites and ground-based space surveillance systems;

The high-speed information processing network is equipped with a Space wire high-speed bus, which carries out real-time dissemination of the situational awareness information, and enables the navigation satellite to have the ability to quickly coordinate with the ground-based monitoring system;

The rapid attack identification detection and reporting system can cope with electromagnetic monitoring and target positioning in different interference environments through the on-orbit reconstruction function.

Optionally, in the navigation satellite space situational awareness method, it also includes:

A high-speed data transmission network, a high-efficiency intra-satellite transmission protocol and a high-efficiency inter-satellite transmission protocol are installed on the navigation satellite to carry out high-speed inter-satellite mutual transmission of situational awareness information, and to complete the timely situational awareness information of any network node within the satellite and between the satellites transmission;

Using the navigation satellites in different orbits to carry out multiple coverage, a large number of monitoring targets and background characteristic measurement data are quickly transmitted to the ground-based space monitoring system in real time, for unified dispatch and command, and to respond to possible threats.

Optionally, in the described navigation satellite space situational awareness method,

The ground-based space surveillance system catalogs and analyzes the situational awareness information to form early warning information.

The present invention also provides a navigation satellite system, comprising:

Multiple navigation satellites are configured to detect targets without prior information in real time through wide-field photoelectric detection loads and electromagnetic environment monitoring loads with high detection sensitivity, so as to conduct situational awareness of space debris and non-cooperative targets and obtain situational awareness information ;

A plurality of the navigation satellites are further configured to perform inter-satellite transmission of the situational awareness information through an inter-satellite link;

a plurality of the navigation satellites, further configured to send the situational awareness information to the ground-based space surveillance system through a satellite-ground link;

The ground-based space surveillance system is configured to form early warning information according to the situational awareness information, and send the early warning information to an operation and control system;

The operation control system is configured to send the early warning information to the navigation satellite;

A plurality of the navigation satellites are also configured to construct a space-ground integrated information network through the inter-satellite link and the satellite-ground link, so as to realize end-to-end information sharing between any environment, any time, and any two points;

The navigation satellite is also configured to enhance the reliability and survivability of the situational awareness information to resist the attack of the enemy through the space-ground integrated information network;

The navigation satellite is also configured to perform electromagnetic radiation shielding and camouflage after receiving the early warning information, so as to improve the survivability and maneuverability of the navigation satellite.

In the navigation satellite space situational awareness method provided by the present invention, it is realized that the navigation satellite has the ability to systematically and continuously monitor and collect information on space targets or electromagnetic interference sources, and integrates multi-attribute, multi-time, and multi-observation sources for the target. , and even the data of the ground system, through the on-board autonomous data processing, the position, speed, temperature field, size, shape and surface characteristics of the target are identified, and the generated early warning information is sent to the ground system and the ground system through the satellite-to-ground and inter-satellite links. Other satellites broadcast, and independently determine the target threat level, and then generate evasion, anti-jamming and other related strategies, and mobilize on-board resources for implementation.

Description of drawings

FIG. 1 is a schematic diagram of a navigation satellite space-ground integration system based on multiple situational awareness according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an in-satellite navigation satellite based on multiple situational awareness according to an embodiment of the present invention.

Detailed ways

The method for space situational awareness of a navigation satellite proposed by the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become apparent from the following description and claims. It should be noted that, the accompanying drawings are all in a very simplified form and in inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention.

Furthermore, unless stated otherwise, features in different embodiments of the invention may be combined with each other. For example, a certain feature in the second embodiment can be used to replace the corresponding or functionally identical or similar feature in the first embodiment, and the resulting embodiment also falls within the scope of disclosure or description of the present application.

The core idea of the present invention is to provide a navigation satellite space situational awareness method to solve the problem that the existing navigation satellite is extremely vulnerable to the attack of space debris or space-based anti-satellite weapons.

At present, for high-value space facilities such as navigation satellites, close space non-cooperative targets are one of the major security threats, including controlled aircraft, micro-meteors, space debris, and kinetic weapons launched by aircraft. In view of these security threats, the shortcomings of the current design of navigation satellites are:

Lack of early warning for non-cooperative targets; if the approaching non-cooperative target is an artificial aircraft, it generally has a regular shape, regular orbital characteristics, and certain maneuverability; the work and heat dissipation of its internal electronic devices make it possible The surface has certain infrared characteristics; the propulsion system to maintain maneuverability makes it have certain wake and infrared characteristics; although it has been designed in a small and micro scale, its size is at least more than a cubic decimeter. These features, within hundreds of kilometers near the navigation satellite, may be captured by on-board optical or microwave radar equipment, but currently the navigation satellite does not have the ability to identify its shape, surface state, temperature field and other features, and collect these features to send to the ground-based The ability to monitor the system.

Lack of ability to evade kinetic energy weapons; enemy aircraft approaching satellites may launch "cold" weapons with considerable speed, relying on high-speed impact to kill navigation satellites. Like micrometeors, it has small size and inconspicuous infrared characteristics specialty. Its orbit has obvious directional characteristics, and the material is mostly composed of metal. At present, navigation satellites do not have radar equipment to identify threats in time for reconnaissance and early warning, nor are they equipped with instantaneous high-thrust orbit change devices to provide sufficient maneuverability to avoid fast-moving threats.

The response to electromagnetic interference is insufficient; at present, there are miniaturized and relatively mature products for electromagnetic environment monitoring involving frequency bands of navigation satellites. However, at present, navigation satellites do not have the technology to autonomously process multi-satellite detection data to form positioning results for use by neighboring satellite devices, nor do they have the ability to autonomously generate corresponding anti-jamming countermeasures, such as closing the interfered channel and the satellite autonomously entering the autonomous operation mode. , change the communication frequency, etc., to ensure that high-quality navigation services can still be provided during the interference period.

The problem to be solved by the present invention is to overcome the deficiencies of the existing technology, and propose that the next generation of navigation satellites should have the ability to systematically and continuously monitor and collect information on space targets or electromagnetic interference sources, and integrate the multi-attribute and multi-time periods of the target. , multi-observation sources, and even data from ground systems, through on-board autonomous data processing, the target's position, velocity, temperature field, size, shape, and surface characteristics are identified, and early warning information is generated through satellite-ground and inter-satellite links. Broadcast to the ground system and other satellites, and independently determine the target threat level, and then generate evasion, anti-jamming and other related strategies, and mobilize on-board resources for implementation.

In order to realize the above idea, the present invention provides a space situational awareness method for navigation satellites, including: as shown in FIG. The target of prior information is used to conduct situational awareness of space debris and non-cooperative targets and obtain situational awareness information; a plurality of the navigation satellites perform inter-satellite transmission of the situational awareness information through inter-satellite links; The navigation satellite sends the situational awareness information to the ground-based space monitoring system through the satellite-ground link; the ground-based space monitoring system forms early warning information according to the situational awareness information, and sends the early warning information to the operation control system; the The operation and control system sends the early warning information to the navigation satellites; a plurality of the navigation satellites build a space-ground integrated information network through the inter-satellite link and the satellite-ground link, so as to achieve any environment, any time, End-to-end information sharing between any two points; the navigation satellite enhances the reliability and survivability of the situational awareness information to resist the attack of the enemy through the integrated information network of space and earth; after the navigation satellite receives the early warning information , shielding and camouflaging electromagnetic radiation to improve the survivability and maneuverability of the navigation satellite.

In response to the threat of international space confrontation, it is necessary for navigation satellites to conduct research on autonomous survival technology based on multi-situational awareness. The so-called passive protection is to defend against enemy attacks by enhancing the reliability of navigation satellites and the survivability of the information provided. The measures that can be taken for passive protection include improving the survivability of satellite devices and the maneuverability of satellites, and adopting electromagnetic radiation shielding and camouflage. In the active aspect, it is required to have the ability to detect, track, identify, intercept and destroy the opposing forces.

As the basis for space situational awareness, navigation satellites can build a space-ground integrated information network through inter-satellite and satellite-ground links to achieve end-to-end communication and information sharing in any environment, at any time, and between any two points. Navigation satellites are equipped with photoelectric detection payloads with wide field of view and electromagnetic monitoring payloads with high detection sensitivity to detect targets without prior information in time; use two sets of high-speed and low-speed buses to realize fast sending and receiving of situational awareness information between satellites and satellites, as well as satellite-to-satellite monitoring. Real-time transmission of internal perception information, and quickly convey this information to the ground through inter-satellite links or satellite-ground links for cataloging, and analyze the target in coordination with the ground, with fast servo response capabilities to form early warning information, and real-time alarms from the ground , to improve the ability of satellites to survive autonomously.

In one embodiment of the present invention, the navigation satellite space situational awareness method further includes: the navigation satellite constructs a spaceborne intelligent multivariate situational awareness data processing system in combination with space targets and electromagnetic environment monitoring capabilities; the spaceborne intelligent multivariate The situational awareness data processing system obtains the situational awareness information detected by the photoelectric detection load and the electromagnetic environment monitoring load; the spaceborne intelligent multi-situational awareness data processing system obtains the ground support data and early warning information of the ground-based space monitoring system; The spaceborne intelligent multi-situational awareness data processing system obtains multi-satellite monitoring data and situational awareness information sent by other navigation satellites; satellite monitoring data to form massive data of space and earth; the onboard intelligent multi-situational awareness data processing system analyzes the massive data of space and earth, predicts the trajectory of space debris and non-cooperative targets, and identifies the surface features of space debris and non-cooperative targets, It autonomously determines the threat level of space debris and non-cooperative targets, generates and broadcasts early warning information, generates evasion strategies, and controls spaceborne high-thrust engines to maneuver and evade.

In an embodiment of the present invention, the navigation satellite space situational awareness method further includes: the spaceborne intelligent multi-situational awareness data processing system analyzes the electromagnetic interference from the ground and space according to the multi-satellite monitoring data , autonomously determine the interference characteristics, locate the position of the interference source, generate and broadcast relevant information, and autonomously generate and implement anti-interference countermeasures.

Navigation satellites can combine the current space targets, the technical capabilities of electromagnetic environment monitoring and the development trend in the next few years to build a spaceborne intelligent multi-situational awareness data processing system based on the support of ground systems and navigation satellite constellations. The system includes photoelectric detection loads and electromagnetic environment monitoring loads. Through the processing and analysis of massive data of space and earth, it has the ability to predict the trajectories of non-cooperative targets in space, identify their surface features, and independently determine their threat levels, and then generate and broadcast early warnings. information, generate an avoidance strategy, and use the spaceborne high-thrust engine to maneuver to avoid it; for electromagnetic interference from the ground and space, the data processing system independently determines the interference characteristics according to the multi-satellite monitoring data, and locates the position of the interference source, and generates and broadcasts relevant information. Generate and implement anti-jamming countermeasures autonomously.

The main means for navigation satellites to obtain situational awareness information to achieve autonomous survival are as follows:

Photoelectric detection and reconnaissance technology: photoelectric detection loads (detecting visible light, infrared, multispectral and hyperspectral) are installed on navigation satellites to provide meter-level observation and optical space targets, and to generate identification data in time; phased array radar is installed for non-friends Target early warning, search, capture and track the target, provide accurate target orbit and characteristic data, and give early warning when the satellite system is threatened; configure a high-thrust engine, and flexibly take measures to avoid it according to the type and degree of threat.

Satellite-ground joint interference detection and protection technology: A rapid attack identification detection and reporting system is established on the navigation satellite. The system is equipped with an electromagnetic environment monitoring payload and a high-speed information processing network. Among them, the electromagnetic environment monitoring load is used for the detection of low-orbit non-friendly targets. When the navigation satellite is maliciously intruded by the enemy, it can monitor the frequency, power and other parameters of the interference signal, provide attack warning, threat identification and characterization, and quickly evaluate the attack. , to provide early warning information to the ground station staff to assist the ground station to better operate and interpret the data downloaded from the satellite, so as to determine whether the satellite is attacked or affected by the space environment, and make decisions accordingly; the high-speed information processing network is equipped with Space The wire high-speed bus is used for real-time dissemination of perception information, and enables the navigation satellite to have the ability to quickly work with the ground-based surveillance system; in addition, the rapid attack identification detection and reporting system should also have the function of on-orbit reconstruction to cope with different interference environments. Electromagnetic monitoring and target positioning under the

High-speed mutual transmission technology of situational awareness information: As shown in Figure 2, a high-speed data transmission network and high-efficiency intra-satellite and inter-satellite transmission protocols are designed on the navigation satellite to ensure that the perception data of any network node within the satellite and between the satellites can be timely. Effective transmission, using satellites in different orbits to achieve multiple coverage, real-time and fast transmission of a large number of monitoring targets and background characteristic measurement data to the ground-based space monitoring system, unified scheduling and command, and timely and effective response to possible threats. the response to.

A high-value space facility autonomous survival technology based on situational awareness proposed by the present invention includes: installing a photoelectric detection load and a phased array radar on a navigation satellite for detection of non-friendly targets and early warning of missiles; Install a high-thrust engine, identify the threat level according to the satellite-ground joint detection data, and then carry out effective evasion; establish a rapid attack identification detection and reporting system on the navigation satellite, which can be used to detect space electromagnetic interference, and cooperate with the ground to determine whether the satellite is being attacked. The attack is still affected by the space environment, and decisions are made accordingly; the rapid attack identification, detection and reporting system established on the navigation satellite has the ability to be reconfigured in orbit to deal with electromagnetic monitoring and target positioning in different interference environments; navigation satellites pass The high-speed data transmission network aggregates electromagnetic monitoring data from multiple satellites to form positioning results. On the basis of autonomous processing capabilities, it can also be called by neighboring satellite devices, forming networked shared data between satellites, and through satellite-ground high-speed links. It is transmitted down the road to the ground for unified dispatch and command on the ground.

To sum up, the above embodiments describe in detail the different configurations of the navigation satellite space situational awareness method. Of course, the present invention includes, but is not limited to, the configurations listed in the above implementation, any configuration basis provided in the above embodiments The contents of the above transformation all belong to the scope of protection of the present invention. Those skilled in the art can draw inferences from the contents of the foregoing embodiments.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method.

The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes and modifications made by those of ordinary skill in the field of the present invention based on the above disclosure all belong to the protection scope of the claims.

Claims (10)

1. A method for sensing spatial situation of a navigation satellite is characterized by comprising the following steps:

the method comprises the following steps that a satellite-borne intelligent multi-element situation perception data processing system is constructed by combining a navigation satellite with a space target and electromagnetic environment monitoring capacity;

a satellite-borne intelligent multi-element situation awareness data processing system acquires situation awareness information detected by a photoelectric detection load and an electromagnetic environment monitoring load;

the method comprises the following steps that a satellite-borne intelligent multi-element situation perception data processing system obtains ground support data and early warning information of a ground space monitoring system;

the method comprises the steps that a satellite-borne intelligent multi-element situation awareness data processing system obtains multi-satellite monitoring data and situation awareness information sent by other navigation satellites;

the satellite-borne intelligent multi-element situation awareness data processing system forms heaven and earth mass data according to situation awareness information, ground support data, early warning information and multi-satellite monitoring data;

the space-borne intelligent multi-element situation awareness data processing system analyzes space and earth mass data, predicts the tracks of space fragments and non-cooperative targets, identifies the surface characteristics of the space fragments and the non-cooperative targets, autonomously determines the threat levels of the space fragments and the non-cooperative targets, generates and broadcasts early warning information, generates an avoidance strategy and controls a space-borne high-thrust engine to maneuver and avoid.

2. The method for spatial situational awareness for navigation satellites of claim 1 further comprising:

performing systematic and continuous monitoring and information collection on a space target or an electromagnetic interference source by adopting a navigation satellite;

integrating data of multiple attributes, multiple time periods and multiple observation sources of a target and data of a ground system by adopting a navigation satellite;

the position, the speed, the temperature field, the size, the shape and the surface characteristic of the target are identified through on-satellite autonomous data processing, and early warning information is generated;

early warning information is broadcasted to a ground system and other satellites through links between the satellite and the ground, the target threat level is determined autonomously, and then evasion strategies and anti-interference strategies are generated, and on-satellite resource implementation is mobilized.

3. The method for spatial situational awareness for navigation satellites of claim 2 further comprising:

aiming at the anti-threat of the international space, the navigation satellite carries out the autonomous survival based on the multi-element situation perception, and the method comprises the following steps: passive protection and active protection;

the passive protection comprises the steps of adopting electromagnetic radiation shielding and camouflage to improve the survival capability and the satellite mobility of a satellite device, and enhancing the reliability of a navigation satellite and the survival capability of provided information to resist the attack of an enemy;

the active protection comprises detecting, tracking, identifying, intercepting and destroying attack force of the other side.

4. The method for spatial situational awareness for navigation satellites of claim 3 further comprising:

as a spatial situation perception foundation, a navigation satellite constructs a heaven-earth integrated information network through inter-satellite and satellite-earth links so as to realize end-to-end communication and information sharing between any two points in any environment and at any time;

the navigation satellite utilizes two sets of high-speed and low-speed buses to realize the rapid receiving and sending of situation perception information between the satellite and the ground and the real-time transmission of in-satellite perception information, and the information is rapidly transmitted to the ground through an inter-satellite link or a satellite-ground link for cataloguing, and the target is analyzed cooperatively on the ground;

the navigation satellite has the rapid servo response capability to form early warning information, and the ground uplink real-time warning improves the autonomous survival capability of the satellite.

5. The method for spatial situational awareness for navigation satellites according to claim 4, further comprising:

a plurality of navigation satellites are provided with photoelectric detection loads with wide view fields and electromagnetic monitoring loads with high detection sensitivity, and targets without prior information are detected in time so as to sense the situation of space fragments and non-cooperative targets and acquire situation sensing information;

the navigation satellites transmit the situation awareness information among the satellites through inter-satellite links; and the navigation satellites transmit the situation awareness information to a ground-based space monitoring system through a satellite-ground link;

the ground space monitoring system forms early warning information according to the situation perception information and sends the early warning information to a running control system;

the operation control system sends the early warning information to the navigation satellite;

a plurality of navigation satellites construct a space-ground integrated information network through the inter-satellite links and the satellite-ground links so as to realize end-to-end information sharing in any environment, at any time and between any two points;

the navigation satellite enhances the reliability and survival ability of the situation awareness information to resist attacks of enemies through a heaven-earth integrated information network; and after receiving the early warning information, the navigation satellite performs electromagnetic radiation shielding and disguising so as to improve the survival capability and the maneuvering capability of the navigation satellite.

6. The method for spatial situational awareness for navigation satellites of claim 5 further comprising:

the navigation satellite combines the technical capability of the current space target and electromagnetic environment monitoring and the future development trend to construct a satellite-borne intelligent multi-element situation perception data processing system based on a ground system and a satellite base support of the navigation satellite;

the satellite-borne intelligent multi-element situation awareness data processing system analyzes electromagnetic interference from the ground and the space according to the multi-satellite monitoring data, autonomously determines interference characteristics, positions interference source positions, generates and broadcasts relevant information, autonomously generates an anti-interference coping strategy and implements the strategy;

the satellite-borne intelligent multi-element situation awareness data processing system comprises a photoelectric detection load and an electromagnetic environment monitoring load, predicts the track of a space non-cooperative target through processing and analyzing heaven and earth mass data, identifies the surface characteristics of the space non-cooperative target, autonomously determines the threat level of the space non-cooperative target, further generates and broadcasts early warning information, generates an avoidance strategy, and utilizes a satellite-borne high-thrust engine to maneuver and avoid the space non-cooperative target.

7. The method as claimed in claim 6, wherein the navigation satellite acquiring situation awareness information to realize autonomous survival comprises:

photoelectric detection and reconnaissance technology: the navigation satellite is provided with a photoelectric detection load, detects visible light, infrared, multispectral and hyperspectral, and is used for providing meter-level observation and optical space targets and generating identification data in time;

the method comprises the following steps of installing a phased array radar for early warning of non-friend targets, searching, capturing and tracking the targets, providing accurate target orbit and characteristic data, and early warning when a satellite system is threatened;

and an engine with high thrust is configured, and measures are flexibly taken to avoid the threat according to the type and the danger degree of the threat.

8. The method as claimed in claim 7, wherein the satellite-to-ground joint interference detection and protection comprises: a rapid attack identification detection and report system is established on a navigation satellite to carry out planet ground combined interference detection and interference protection, and the system is provided with an electromagnetic environment monitoring load and a high-speed information processing network;

the electromagnetic environment monitoring load is used for detecting a low-orbit non-friend target, when a navigation satellite is maliciously invaded by an enemy, the frequency and the power of an interference signal are monitored, an attack alarm, threat identification and characterization are provided, the attack is quickly evaluated, early warning information is provided for ground station workers, the ground station is assisted to better operate and interpret data downloaded from the satellite, and therefore the satellite is determined to be attacked or influenced by a space environment and a decision is made;

the high-speed information processing network is provided with a Space wire high-speed bus for sensing real-time transmission of information and enabling the navigation satellite to have the capability of fast cooperative work with the foundation monitoring system;

the rapid attack identification detection and report system also has an on-track reconstruction function so as to deal with electromagnetic monitoring and target positioning under different interference environments.

9. The method for sensing the spatial situation of the navigation satellite according to claim 8, wherein the inter-satellite high-speed mutual transmission of the situation awareness information comprises:

a high-speed data transmission network and a high-efficiency intra-satellite and inter-satellite transmission protocol are designed on the navigation satellite, so that the sensing data of any network node in the satellite and between the satellites can be effectively transmitted in time, the satellites on different orbits are utilized to realize multiple coverage, a large amount of monitoring targets and background characteristic measurement data are rapidly transmitted to a ground space monitoring system in real time, unified scheduling and commanding are carried out, and timely and effective response is made to possible threats.

10. The method for spatial situational awareness for navigation satellites of claim 9 further comprising:

a rapid attack identification detection and report system is established on the navigation satellite so as to carry out planet ground combined interference detection and interference protection;

the rapid attack identification detection and report system is provided with an electromagnetic environment monitoring load and a high-speed information processing network;

multiple coverage is carried out by using navigation satellites on different orbits, a large amount of monitoring target and background characteristic measurement data are rapidly transmitted to a foundation space monitoring system in real time, unified scheduling and commanding are carried out, and response is made to possible threats;

and the ground space monitoring system catalogues and analyzes the situation awareness information to form early warning information.

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