KR101984107B1 - Apparatus and method for relaying signal of global navigation satellite system - Google Patents

Abstract

The present invention relates to a relay apparatus and relay method for relaying a satellite navigation signal to an antibody charged in a launch tube, and a satellite navigation signal relay apparatus according to an embodiment of the present invention includes a reception antenna for receiving the satellite navigation signal, And a low noise amplifier for low noise amplifying the received satellite navigation signal; an attenuation unit for controlling gain of the satellite navigation signal amplified by the receiving unit; and a satellite navigation signal for which the gain is controlled by the attenuation unit, And a control unit for determining a noise level based on the noise detected from each of the plurality of launch tubes and controlling the signal gain of the attenuation unit based on the determined noise level .

Description

TECHNICAL FIELD [0001] The present invention relates to a satellite navigation signal relay apparatus and a relay method,

The present invention relates to a relay apparatus and a relay method for relaying a satellite navigation signal to an antibody charged in a launch tube.

Satellite navigation signals are usually received at a lower power than noise, and there is a problem that several tens of seconds are required to receive four or more satellite signals and perform normal navigation.

Generally, the antibody is charged into the tube, and the tube is usually structured such that the wave is shielded. Accordingly, there is a problem that it is difficult to transmit the satellite navigation signal to the antibody before the antibody is fired. Accordingly, there is a problem that the antibody can not receive the satellite navigation signal before being fired from the launch tube. Accordingly, after the antibody is fired, the satellite navigation of the antibody is performed. After the antibody has been fired for several tens of seconds after the antibody has been fired due to the problem of receiving the satellite navigation signal, the antibody may process the satellite navigation signal and perform normal navigation There is a problem.

Meanwhile, in order to solve such a problem, a method of using a relay device for relaying a satellite navigation signal in the room can be considered. In the case of a conventional satellite navigation signal repeater, an auxiliary device for transmitting a satellite navigation signal received from the satellite navigation system to a satellite navigation device located in the room so that the satellite navigation device can operate in an area where the satellite navigation signal can not be received, And can be used as a device for checking the performance of a satellite navigation device.

The satellite navigation signal repeater may include a satellite navigation signal receiving antenna (hereinafter referred to as a receiving antenna) provided at a position where the satellite navigation signal can be maximally secured. The receiving antenna is placed in a generally high area in the external environment, and fixed at a position not covered by a mountain or a building.

Then, the satellite navigation signal received from the receiving antenna is transmitted to the signal distributor using a cable connected thereto. The transmitted satellite navigation signal is transmitted to the radiating antenna for transmitting the satellite navigation signal in the indoor or arbitrary space, and is set such that the antenna of the satellite navigation device receives the signal transmitted through the radiating antenna.

However, in the conventional case, when the distance from the receiving antenna installed on the outside of the tube to the radiating antenna inside the tube is connected by a cable, there is a problem that the signal becomes weaker due to the length of the cable. Also, since the connection state of the reception antenna and the radiation antenna can not be confirmed in the fire control system, there is a problem that the satellite navigation signal is distributed to the plurality of launching tubes at the same time, have.

It is an object of the present invention to solve the above-mentioned problems and other problems, and an object of the present invention is to provide a satellite navigation signal relaying device and a relaying method for delivering a satellite navigation signal to an antibody charged in a launching tube.

Another object of the present invention is to provide a satellite navigation signal relay device capable of self-diagnosing a connection state between a receiving antenna for receiving a satellite navigation signal, a plurality of radiation antennas for transmitting the received satellite navigation signal to a plurality of antibodies, And to provide a relay method.

Another object of the present invention is to provide a satellite navigation signal relay apparatus and a relay method capable of controlling the gain of the received satellite navigation signal based on noise levels detected from each of a plurality of launch tubes loaded with an antibody It is for that purpose.

According to an aspect of the present invention, there is provided a satellite navigation signal relay apparatus including: a receiving antenna for receiving a satellite navigation signal; And an attenuator for controlling a gain of the satellite navigation signal amplified by the receiver, and a satellite navigation signal whose gain is controlled by the attenuator, to the radiation antennas provided in each of the plurality of launch tubes And a control unit for determining a noise level based on noise detected from each of the plurality of launch tubes and controlling the signal gain of the attenuation unit based on the determined noise level.

In one embodiment, the radiation antennas further include a noise detector for detecting noise, and the controller detects noise corresponding to each tube from the noise detector provided in each radiation antenna, And the noise level is determined based on the noise level.

In one embodiment of the present invention, there is provided a radio communication system comprising: a first diagnosis unit for diagnosing a connection state of a reception antenna based on a current value detected by the reception unit; And a second diagnosing unit for diagnosing the abnormality.

In one embodiment, the control unit determines a connection state of the reception antenna based on an amplification level of the low-noise amplification unit, and the connection state of the reception antenna is determined based on a current value detected by the reception unit, And the maximum value (Imax) of the allowable current detected from Equation (2), it is determined that the receiving antenna is normally connected.

[Equation 1]

Vref is a reference voltage, Rsense is a reference resistance, and Avout is an amplification degree of the low noise amplification part.

&Quot; (2) "

Herein, R1 and R2 are preset different resistance values for calculating the maximum value of the tolerance current range, Vref is the reference voltage, Rsense is the reference resistance, and Avout is the amplification of the low noise amplification part.

In one embodiment, the system further comprises a fire control system for receiving information of an antenna for which an abnormal connection is detected according to a diagnosis result of the first diagnosis unit and a diagnosis result of the second diagnosis unit, 1 information indicating that the reception antenna is in an abnormal connection state according to the diagnosis result of the diagnosis part or information for indicating the radiation antenna in which an abnormal connection is detected according to the diagnosis result of the second diagnosis part.

In one embodiment, the first launch tube of the plurality of launch tubes may include a plurality of radiating antennas provided at different positions, and the control unit may be configured to select, based on the type of antibody loaded into the first launch tube, And a first radiating antenna among the radiating antennas is connected to the distributing unit.

In one embodiment of the present invention, when the diagnosis of the connection state of the radiation antenna connected to the distribution unit is made and the diagnosis is made that the first radiation antenna is not connected, And one of the plurality of radiation antennas other than the first radiation antenna is connected to the distribution unit based on the position of the transmission antenna.

The satellite navigation signal relaying method according to an exemplary embodiment of the present invention may further include the steps of receiving the satellite navigation signal, low-noise amplifying the received satellite navigation signal, Determining a noise level based on noise detected from the detected noise level; adjusting a gain of the amplified satellite navigation signal based on the determined noise level; And a satellite navigation signal whose gain is adjusted via the radiation antennas is transmitted to the respective antibodies charged in each of the launch tubes.

In one embodiment, the step of receiving the satellite navigation signal includes calculating a minimum value Imin and a maximum value Imax of the tolerance error current range on the basis of the low noise amplification level, Determining whether a reception antenna that receives the satellite navigation signal has a connection state based on whether a value is within a tolerance current range formed from the minimum value Imin and the maximum value Imax, Imin) and the maximum value (Imax) are determined from the following equations (1) and (2).

[Equation 1]

Vref is a reference voltage, Rsense is a reference resistance, and Avout is an amplification degree of the low noise amplification part.

&Quot; (2) "

Herein, R1 and R2 are preset different resistance values for calculating the maximum value of the tolerance current range, Vref is the reference voltage, Rsense is the reference resistance, and Avout is the amplification of the low noise amplification part.

In one embodiment, the step of determining the noise level may include detecting a connection state of each of the radiating antennas, collecting noises from noise detectors provided in radiating antennas normally connected as a result of detection, And determining a noise level based on the average value of the collected noise or the intensity of the maximum noise.

In one embodiment, the first of the plurality of tubes may include a plurality of radiating antennas provided at different positions, and the step of determining the noise level may include the step of determining, among the plurality of radiating antennas, Connecting a first radiating antenna corresponding to a position of the transmitting antenna provided in the antibody charged in the antenna to a distributing unit for distributing the satellite navigation signal with the gain adjusted to each of the radiating antennas, The method may further include diagnosing a connection state of the first radiation antenna, and determining a noise level based on the noise detected from each of the plurality of radiation antennas connected to the distribution unit.

In one embodiment, the step of diagnosing the connection state of the first radiation antenna may include: diagnosing the connection state of the first radiation antenna based on the position of the transmission antenna when the diagnosis result indicates that the first radiation antenna is not connected, And connecting one of the antennas to the distribution unit except for the first radiation antenna.

The effects of the satellite navigation signal relay apparatus and the relay method according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, the present invention has an advantage in that it can transmit a satellite navigation signal transmitted from a satellite navigation system to antibodies charged in a plurality of launch tubes designed with a radio wave shielding structure.

According to at least one of the embodiments of the present invention, the present invention has an advantage in that it is possible to detect the launch tubes which are difficult to transmit the satellite navigation signal in advance according to the connection state of the antennas before the antibody emission.

According to at least one of the embodiments of the present invention, the gain of the satellite navigation signal transmitted to each tube is controlled based on different noise states for each tube, so that the charged GPS signals Can be transmitted.

1 is a block diagram showing a structure of a satellite navigation signal repeater according to an embodiment of the present invention.
2 is a block diagram illustrating a structure of a radiating antenna of a satellite navigation signal repeater according to an embodiment of the present invention, which is provided in each of a plurality of launch tubes.
3 is a flowchart illustrating an operation of transferring a satellite navigation signal received from an external source to an antibody loaded in each tube in the satellite navigation signal repeater according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating an operation of detecting connection states of radiation antennas provided in respective launch tubes in a satellite navigation signal repeater according to an embodiment of the present invention. Referring to FIG.
5 is a flowchart illustrating an operation of detecting a noise level based on a noise state of each tube in a satellite navigation signal repeater according to an embodiment of the present invention.
6 is an exemplary view showing an example in which different kinds of antibodies are charged into one of the launch tubes.
7 is an exemplary view illustrating an example of receiving a noise signal of the launch tube from different antibodies charged in a launch tube in a satellite navigation signal repeater according to an embodiment of the present invention.

It is noted that the technical terms used herein are used only to describe specific embodiments and are not intended to limit the invention. Also, the singular forms "as used herein include plural referents unless the context clearly dictates otherwise. In this specification, " comprises " Or " include. &Quot; Should not be construed to encompass the various components or steps described in the specification, and some of the components or portions may not be included, or may include additional components or steps And the like.

Further, in the description of the technology disclosed in this specification, a detailed description of related arts will be omitted if it is determined that the gist of the technology disclosed in this specification may be obscured.

Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a structure of a satellite navigation signal repeater 100 according to an embodiment of the present invention.

1, a satellite navigation signal repeater 100 according to an exemplary embodiment of the present invention includes a receiver 110, a BPF 120, an attenuator 130, a distributor 140, And may include a radiating antenna 150, a first diagnosis unit 160, a second diagnosis unit 170, and a control unit 180. And a fire control system 190 connected to the control unit 180 and receiving the operation result of the control unit 180 and the detection result of the control unit 180 and displaying the result. Meanwhile, the receiver 110, the BPF 120, the attenuator 130 distributor 140, and the radiating antenna 150 may be connected by a cable, and the received satellite navigation signals may be transmitted in the order The receiving unit (110). The BPF 120, the attenuator 130, the distributor 140, and the radiating antenna 150 in this order.

The receiving unit 110 includes a receiving antenna 112 for receiving a satellite navigation signal from a satellite navigation system such as an external GPS (Global Positioning System), a satellite navigation signal received by the receiving antenna 112, And outputs the amplified signal to the BPF 120.

On the other hand, as described above, the satellite navigation signal is typically received at a lower power than noise. Further, in the case of the satellite navigation signal repeater according to the embodiment of the present invention, since the cable is connected as described above, the signal strength can be further weakened due to the loss due to the length of the cable. Accordingly, the amplification unit may be a low noise amplification unit capable of amplifying a low-noise signal to compensate for the weakened signal strength. In the following description, it is assumed that the amplification unit is a low noise amplification unit 114. [

Meanwhile, the low-noise amplified satellite navigation signal may be input to the BPF 120 of the receiving unit 110. Then, the BPF 120 filters the signal of a predetermined band so as to filter the noise from the amplified signal. The amplified satellite navigation signal in which the noise is filtered by the BPF 120 may be input to the attenuation unit 130.

The attenuation unit 130 may control the gain of the amplified satellite navigation signal with the noise filtered. Here, the attenuation unit 130 may control the gain according to the control of the controller 180.

Meanwhile, the control unit 180 may control the gain of the attenuator 130 based on the noise of each of the plurality of launch tubes. For example, the control unit 180 may determine the gain of the attenuator 130 according to a predetermined noise level expected from each of the plurality of launch tubes. Or the control unit 180 can determine the gain of the satellite navigation signal based on the noise directly detected from each of the plurality of launch pipes. In this case, the control unit 180 may determine the gain of the satellite navigation signal based on the largest noise among the detected noises, or may determine the gain of the satellite navigation signal based on the average noise of the detected noises.

The satellite navigation signal whose gain is controlled by the attenuation unit 130 may be input to the distribution unit 140. Then, the distribution unit 140 can input the input satellite navigation signal to the radiation antenna 150 provided in each of the plurality of launch tubes. The radiating antenna 150 transmits the input satellite navigation signal to each tube, and thus the antibodies charged into each tube can receive and process the satellite navigation signal transmitted from the radiating antenna 150 provided in each tube have. Accordingly, the antibodies charged in each of the above-mentioned launching tubes can receive a navigation signal before firing and perform normal navigation.

Meanwhile, the satellite navigation signal relay apparatus 100 according to the embodiment of the present invention can self-diagnose the connection state of the reception antenna 112 and the radiation antenna 150. [ The satellite navigation signal relay apparatus 100 according to an embodiment of the present invention includes a first diagnosis unit 160 for diagnosing a connection state of a reception antenna 112 having a low noise amplification unit 114, And a second diagnosis unit 170 for diagnosing the connection state of the first antenna 150.

The first diagnosis unit 160 diagnoses the connection state of the reception antenna 112 based on whether the available current value detected by the reception unit 110 is within a predetermined allowable range under the control of the control unit 180 . Here, the first diagnosis unit 160 may diagnose a connection state of each antenna at a predetermined period of time (for example, 1 second), and may transmit the diagnosis result to the control unit 180.

In the case of the first diagnosis unit 160, since the reception antenna 112 is provided with the low noise amplification unit 114, the connection state of the reception antenna 112 according to the amplification result of the low noise amplification unit 114 It can be set differently from the allowable range of the available current value so that it can be judged.

Meanwhile, the second diagnosis unit 170 can diagnose the connection state of the connected radiating antenna 150. [ For example, the second diagnosis unit 170 can check whether the radiation antenna 150 is disconnected by checking the loop state of the power line to which the radiation antenna 150 is connected. In the case of the radiating antenna 150 provided in each tube, it is an antenna for receiving and transmitting a signal whose gain is controlled by the attenuation unit 130, and is a passive antenna in which amplification through the low- Because.

Meanwhile, the connection states of the antennas detected by the first diagnosis unit 160 and the second diagnosis unit 170 may be transmitted to the controller 180. Then, the control unit 180 may transmit the detected result to the fire control system 190. Meanwhile, the first diagnosis unit 160 and the second diagnosis unit 170 can diagnose the connection state of the respective antennas at predetermined time intervals, and the controller 180 can also receive the diagnosis results at predetermined intervals To the fire control system (190).

Meanwhile, the control unit 180 may control the radiation antenna 150 to diagnose the connection state of each radiation antenna 150 provided in each tube. That is, the control unit 180 sequentially selects the radiation antennas included in each tube through multiplexing according to a preset order, and diagnoses the connection state of the selected radiation antenna.

In the meantime, each of the tube tubes according to the embodiment of the present invention may include a noise detector capable of detecting noise of each tube tube. The control unit 180 may determine the noise level of each tube from the noise detector. For example, the noise detector may calculate the noise level of each tube based on the signal received from the antibody loaded into each tube. Then, the control unit 180 may determine the gain level of the attenuation unit 130 based on the noise level calculated by the noise detection unit.

FIG. 2 is a block diagram showing a structure in which each tube including each radiation antenna 150 of the satellite navigation signal repeater 100 according to an embodiment of the present invention includes the noise detector.

Referring to FIG. 2, a first launch tube 200 having a first radiation antenna 212 of a satellite navigation signal repeater according to an embodiment of the present invention includes a first launch tube 200 itself, And a first noise detector 214 for detecting a noise inside the tube 200. [ For example, the first noise detector 214 calculates the SNR (Signal to Ratio) of the signal input to the first radiation antenna 212 or the Eb / No (Energy per Bit to Noise Power Spectral Density Ratio) Lt; / RTI > The first noise detector 214 may transmit a noise detection result to the controller 180.

Accordingly, the control unit 180 can detect the noise detected at each tube from each of the tube tubes, that is, the first tube tube 200, the second tube tube 210, and the n tube tubes. Then, the controller 180 may adjust the gain of the attenuator 130 so that a satellite navigation signal having an intensity greater than a predetermined level is output from the average intensity of the detected noises. Alternatively, the controller 180 may adjust the gain of the attenuator 130 so that a satellite navigation signal having an intensity greater than a preset level is output from the noise having the maximum amplitude among the detected noises. Accordingly, the present invention is advantageous in that an appropriate satellite navigation signal can be distributed to each of the launch tubes even when noise exists in the inside of the launch tube and the noise level inside the tube is different.

Meanwhile, although FIG. 2 shows an example in which a radiating antenna and a noise detector are included in each tube, the noise detector may be provided in each corresponding radiating antenna.

3 is a flowchart illustrating an operation of delivering a satellite navigation signal received from an external source to an antibody charged in each launch tube in the satellite navigation signal relay apparatus 100 according to an embodiment of the present invention.

3, the satellite navigation signal relay apparatus 100 according to an embodiment of the present invention may receive a satellite navigation signal through a receiving antenna 112. [ The received satellite navigation signal can be amplified through the low-noise amplifier 114 (S300). The first diagnosis unit 160 detects a current value (an available current value) detected by the receiving antenna 112 connected to the low noise amplifying unit 114 and outputs the detected current value The state can be judged. And transmits the determination result to the control unit 180. The operation of the controller 180 for diagnosing the connection state of the reception antenna 112 through the first diagnosis unit 160 will be described in detail with reference to FIG.

Meanwhile, if the satellite navigation signal received and received in step S300 is amplified, the controller 180 can determine the noise level based on the noise detected from the radiating antenna 150 provided in each tube S302). The attenuation factor of the attenuation unit 130 may be determined so that the gain of the amplified satellite navigation signal is adjusted according to the determined noise level (S304).

Meanwhile, the step S302 may further include an operation of diagnosing a connection state of the radiating antennas 150 based on a current value detected from the radiating antennas 150 provided in each tube. The control unit 180 may determine the noise level based on the noise detected from the launch tube corresponding to the radiation antenna that is normally connected as a result of the diagnosis of the connection state of the radiation antennas 150. A process of diagnosing the connection state of each radiation antenna 150 by the controller 180 will be described in detail with reference to FIG.

Meanwhile, if the attenuation rate is determined in step S304, the attenuation unit 130 may adjust the gain range of the satellite navigation signal input to the distribution unit 140 according to the determined attenuation rate (S306). The satellite navigation signal whose gain is adjusted can be distributed to the radiation antenna 150 of each tube through the distribution unit 140 and the distributed satellite navigation signal can be transmitted through the radiation antenna 150 of each tube (S308). Then, the antibodies charged in the respective tube can receive the transmitted satellite navigation signal.

Meanwhile, FIG. 4 is a flowchart illustrating an operation of detecting a connection state of radiating antennas 150 provided in each satellite tube in the satellite navigation signal repeater 100 according to an embodiment of the present invention.

Referring to FIG. 4, the satellite navigation signal repeater 100 according to the embodiment of the present invention sets the tolerance error current range based on the amplification level of the low-noise amplifier 114 in step S300 of FIG. (S400). Here, the maximum value Imax and the minimum value Imin of the tolerance error current range may be determined by the following equations (1) and (2), respectively.

Herein, R4 and R5 are preset different resistance values for calculating the minimum value of the tolerance current range, Vref is the reference voltage, Rsense is the reference resistance, and Avout is the amplification of the low noise amplifier 114. For example, when Avout is set to 25, the reference voltage Vref may be set to 1.2 V and the reference resistance Rsense may be set to 1.3.

Herein, R1 and R2 are preset different resistance values for calculating the maximum value of the tolerance current range, Vref is the reference voltage, Rsense is the reference resistance, and Avout is the amplification of the low noise amplifier 114 . Similarly, when Avout is set to 25, the reference voltage Vref can be set to 1.2 V and the reference resistance Rsense can be set to 1.3?.

If the maximum value Imax and the minimum value Imin of the tolerance current range are determined in step S400, the controller 180 may set the window of the available current value based on the determined maximum and minimum values (S402). For example, the allowed current value window may be determined to be less than the minimum value and the maximum value calculated in step S400. That is, the following equation (3).

If the permissible current value window is determined as shown in Equation (3), the controller 180 may control the first diagnosis unit 160 to calculate the minimum value Imin and the maximum value Imax (S404). For example, if Avout is set to 25 and the reference voltage Vref and the reference resistance Rsense are set to 1.2 V and 1.3 Ω, respectively, as described above, the minimum value Imin, that is, the minimum allowable current value is 5 mA, The maximum value Imax, that is, the maximum allowable current value, can be calculated as 115 mA. The control unit 180 may determine whether the receiving antenna 112 is normally connected or not based on the current value detected from the receiving unit 110, that is, the receiving antenna 112 provided with the low noise amplifier 114 (S406).

If the current value detected from the receiving unit 110 is included in the allowable current value window, that is, if it corresponds to the available current value, the controller 180 can determine that the receiving antenna 112 is normally connected in step S406. You can then go on to the next step. The control unit 180 may transmit the connection state of the reception antenna 112 and information on the amplification degree Avout of the low noise amplification unit 114 to the controller 180. [ Therefore, the connection state of the reception antenna 112 and the amplification degree of the low noise amplification unit 114 can be transmitted to the fire control system through the controller 180. Here, the controller 180 not only transmits the connection state and the amplification degree Avout of the receiving antenna 112 but also other related information, that is, the information about the allowable current value window Imax and Imin to the fire control system Of course.

However, if it is determined in step S406 that the current value detected by the receiving unit 110 is not included in the allowable current value window, the controller 180 may detect that the connection state of the receiving antenna 112 is abnormal. Then, the control unit 180 transmits a signal for informing the fire control system 190 to display the connection state of the reception antenna 112. In this case, the controller 180 not only informs the connection control system of the connection state and the amplification degree Avout of the reception antenna 112, but also other related information, that is, information about the allowable current value windows Imax and Imin Lt; / RTI >

5 is a flowchart illustrating an operation of detecting a noise level based on a noise state of each tube in the satellite navigation signal repeater 100 according to an embodiment of the present invention.

Referring to FIG. 5, the controller 180 of the satellite navigation signal repeater 100 according to the embodiment of the present invention detects the noise level of the radiating antenna 0 in step S302 of FIG. 3, The current values can be sequentially detected from the radiation antennas 150 selected in step S502.

On the other hand, the control unit 180 can determine the connection state of the radiation antennas based on whether or not the current value is detected from the radiation antennas 150 (S504). The control unit 180 can detect the radiating antenna in which the abnormal connection is detected according to the determination result in step S504. For example, in the case of a radiating antenna in which the power value is not detected, the controller 180 may determine that the state of the power of the radiating antenna is abnormal. Then, the control unit 180 may transmit information about the radiating antenna for which the abnormal connection is detected to the fire control system (S506). The fire control system may then display information corresponding to the radiating antenna for which the abnormal connection was detected.

Meanwhile, the controller 180 may detect the noise detected from the launch tubes corresponding to the currently connected normal radiating antennas. The noise level may be determined based on the detected noises (S508). For example, the control unit 180 may calculate an average of the noise collected from the normally connected ducts, or may determine the noise level based on the strongest noise among the detected noises. Then, the controller 180 proceeds to step S304 of FIG. 3 and determines the decay rate according to the noise level determined in step S508.

On the other hand, noise detection in each tube can be made based on signals (for example, response signals emitted from the antibody, etc.) sent out from the antibody charged to the tube. That is, the noise detector 214 can calculate the noise level in the corresponding tube based on the signal received from the antibody charged in the tube.

However, depending on the type of the antibody, the position of the antenna for transmitting the signal from the antibody may be different. FIG. 6 is an illustration showing an example in which different kinds of antibodies are charged. In the following description, for convenience of explanation, it is assumed that the front end portion of the antibody is referred to as the "front end portion", the portion where the antibody is propelled is referred to as the "rear end portion", and the portion between the "front end portion" Quot; A portion of the launch tube corresponding to the 'front end' of the antibody is referred to as a 'first portion', a portion of the launch tube corresponding to a 'stop portion' of the antibody is referred to as a 'second portion' One part of the corresponding launch tube will be referred to as a 'third part'.

Referring to FIG. 6, FIG. 6 (a) shows an example of an antibody having a sending antenna 630 for sending the signal to the front end of the antibody. 6 (b) shows an example where the delivery antenna 630 is provided at the rear end of the antibody, and FIG. 6 (c) shows an example where the delivery antenna 630 is provided at the rear end of the antibody. 6 (a), 6 (b) and 6 (c) can be examples in which different antibodies are charged.

6 (a), the radiating antenna 212 may be located in the first part of the launch tube 200. [ 6 (a), when the first antibody 600 having the delivery antenna 630 at the front end is charged into the launch tube 200, the radiation antenna 212 and the delivery antenna The noise detector 214 may receive the signal transmitted from the transmitter antenna 630 through the radiating antenna 212 and transmit the signal to the transmitter tube 630. [ 200) of the noise level.

6 (a), when a different type of antibody is charged into the launch tube 200 in which the radiation antenna 212 is located in the first section, depending on the type of the antibody, May be different. Figures 6 (b) and 6 (c) show this example.

Referring to FIG. 6 (b), FIG. 6 (b) shows an example in which a second antibody 610 equipped with a delivery antenna 630 is inserted into a launch tube 200 at a middle portion thereof. In this case, the distance 650 between the radiating antenna 212 and the transmitting antenna 630 may be different from the first distance as shown in FIG. 6 (b). When the distance 650 between the radiating antenna 212 and the radiating antenna 630 is changed, the intensity of the signal transmitted from the radiating antenna 630 varies. Therefore, the noise detector 214 detects noise in the radiating tube 200 The noise level may be calculated differently due to the distant distance.

6C shows an example in which the third antibody 620 having the delivery antenna 630 at the rear end thereof is charged into the launch tube 200. In the example of FIG. In this case, since the distance 650 between the radiating antenna 212 and the transmitting antenna 630 is farther than the distance shown in FIG. 6C, the intensity of the signal transmitted from the transmitting antenna 630 is weaker . Therefore, the noise detector 214 can determine the noise level differently depending on the type of the antibody charged into the launch tube 200, even if the noise in the tube 200 is the same.

In order to prevent noise levels from varying depending on the type of antibody to be charged, the satellite navigation signal repeater 100 according to the embodiment of the present invention includes a plurality of radiating antennas . And a memory including information on the type of the antibody charged into the pancreatic duct. Here, the information on the type of the antibody may include information on the position of the sending antenna 930 provided in each antibody. When the second diagnosis unit 170 performs the diagnosis of the connection state of the radiation antenna 212 for a specific launch tube, the control unit 180 firstly extracts, from the information stored in the memory, the transmission antenna 930 Can be identified. Then, one of the radiation antennas 212 corresponding to the position of the identified sending antenna 930 can be selected and connected, and the connected state can be diagnosed through the second diagnosis unit 170.

FIG. 7 is an exemplary view illustrating an example of receiving a noise signal of the launch tube from different antibodies charged in a launch tube in the satellite navigation signal repeater according to an embodiment of the present invention.

7A shows an example in which a first antibody 600 having a delivery antenna 630 provided at a front end thereof is charged into a launch tube 200. FIG. The control unit 180 controls the first radiation antenna 212a corresponding to the position of the front end of the first antibody 600 among the radiation antennas 212a, 212b, and 212c provided in the tube 200, 140). The second diagnosing unit 170 checks the connection state of the currently connected first radiating antenna 212a and receives the connection from the transmitting antenna 630 of the first antibody 600 when the first radiating antenna 212a is normally connected The noise level can be detected based on the received signal. The amplification degree of the low noise amplification unit 114 can be determined based on the noise level.

On the other hand, FIG. 7B shows an example in which the second antibody 610 equipped with the sending antenna 630 in the middle portion is charged into the launch tube 200. The control unit 180 then transmits the second radiation antenna 212b corresponding to the position of the middle portion of the second antibody 610 among the radiation antennas 212a, 212b, and 212c provided in the launch tube 200 to the distribution unit 140). The second diagnosis unit 170 checks the connection state of the currently connected second radiating antenna 212b and receives the second radiating antenna 212b from the transmitting antenna 630 of the second antibody 610 when the second radiating antenna 212b is normally connected The noise level can be detected based on the received signal. The amplification degree of the low noise amplification unit 114 can be determined based on the noise level.

7C shows an example in which the third antibody 620 having the delivery antenna 630 at its rear end is charged into the launch tube 200. [ The control unit 180 may connect the third radiation antenna 212c corresponding to the position of the middle portion of the third antibody 620 to the distribution unit 140. [ The second diagnosis unit 170 checks the connection state of the third radiation antenna 212c and outputs a signal received from the transmission antenna 630 of the third antibody 620 when the third radiation antenna 212c is normally connected The noise level can be detected. The amplification degree of the low noise amplification unit 114 can be determined based on the noise level. Accordingly, the present invention can prevent the noise level from being calculated differently depending on the type of antibody charged into the launch tube.

On the other hand, when the radiation antenna corresponding to the position of the sending antenna 630 of the loaded antibody is not connected as a result of the diagnosis of the second diagnosis unit 170, the controller 180 controls the radiation antennas You may. In this case, the control unit 180 may connect the radiating antenna closest to the position of the transmitting antenna 630 to the distributing unit 140.

For example, as shown in FIG. 7 (a), if the position of the transmitting antenna 630 is the front end of the antibody, if the first radiating antenna 212a is not connected, The second radiation antenna 212b, which is a radiation antenna provided at a position nearest to the front end of the antibody, may be connected to the distribution unit 140. [ The noise level may be detected based on a signal received through the second radiation antenna 212b, and the amplification degree of the low noise amplification unit 114 may be determined according to the detected noise level. Accordingly, when the second radiation antenna 212b is connected, the amplification degree is determined considering the noise level according to the connection of the second radiation antenna 212b, so that even if the radiation corresponding to the position of the transmission antenna 630 The satellite navigation signal can be stably relayed to the antibody even if the antenna (first radiation antenna 212a) is disconnected.

As described above, according to the present invention, a plurality of radiating antennas can be provided for each tube, and the radiating antenna at a corresponding position can be connected to the distributing unit depending on the type of antibody charged in the tube. Therefore, in the present invention, when the types of antibodies charged to the respective launch tubes are different, the satellite navigation signals may be relayed to the antibodies through radiating antennas provided at different positions for the respective launch tubes.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Particularly, in the embodiment of the present invention, SNR or Eb / No is detected from each tube to detect noise. However, this is only an embodiment for detecting noise of each tube in the present invention. Of course, it is not limited.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit of the terminal. The foregoing detailed description, therefore, should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: Satellite navigation signal relay device 110: Receiver
112: receiving antenna 114: low noise amplifier
120: BB frame generator 130: attenuator
140: Distribution part 150: Radiation antenna
160: first diagnosis section 170: second diagnosis section
180: control unit 190: fire control system

Claims (12)

A satellite navigation signal relay apparatus for relaying a satellite navigation signal based on noise detected from each of a plurality of launch pipes,
A receiving unit including a receiving antenna for receiving the satellite navigation signal and a low-noise amplifier for low-noise amplifying the received satellite navigation signal;
An attenuation unit for controlling a gain of the satellite navigation signal amplified by the receiving unit;
A distribution unit for distributing a satellite navigation signal whose gain is controlled by the attenuation unit to radiation antennas provided in each of the plurality of launch tubes; And
And a control unit for determining a noise level based on the noise detected from each of the plurality of launch pipes and controlling the signal gain of the attenuation unit based on the determined noise level. The method according to claim 1,
The radiation antennas,
Further comprising a noise detector for detecting noise,
Wherein,
Wherein the noise level detecting unit detects noise corresponding to each tube from the noise detecting unit provided in each radiation antenna, and determines the noise level based on the detected noises. The method according to claim 1,
A first diagnostic unit for diagnosing a connection state of the reception antenna based on a current value detected from the reception unit; And
And a second diagnosis unit for diagnosing a connection state of each radiation antenna based on a current value detected from each radiation antenna. The apparatus of claim 3,
Determining a connection state of the reception antenna based on the amplification level of the low noise amplification unit,
Wherein the determination of the connection state of the reception antenna comprises:
And determines that the receiving antenna is normally connected when the current value detected from the receiving unit falls within a minimum value Imin and a maximum value Imax of the allowable current detected from the following equations (1) and (2) Satellite navigation signal repeater.
[Equation 1]

Vref is a reference voltage, Rsense is a reference resistance, and Avout is an amplification degree of the low noise amplification part.
&Quot; (2) "

Herein, R1 and R2 are preset different resistance values for calculating the maximum value of the tolerance current range, Vref is the reference voltage, Rsense is the reference resistance, and Avout is the amplification of the low noise amplification part. The method of claim 3,
Further comprising a fire control system for receiving information of an antenna for which an abnormal connection is detected according to a diagnosis result of the first diagnosis unit and a diagnosis result of the second diagnosis unit,
Wherein the fire control system comprises:
And displays information for indicating a radiating antenna in which an abnormal connection is detected according to a diagnosis result of the second diagnosis unit, or displays information indicating a radiating antenna for which an abnormal connection has been detected according to a diagnosis result of the first diagnosis unit Relay device. The method according to claim 1,
Wherein the first bullet tube of the plurality of bullet tubes includes:
And a plurality of radiation antennas provided at different positions,
Wherein,
And the first radiating antenna among the plurality of radiating antennas is connected to the distributing unit based on the type of the antibody charged into the first launching tube. 7. The apparatus of claim 6,
Wherein when the first radiating antenna is diagnosed as being disconnected as a result of diagnosing the connection state of the radiating antenna connected to the distributing unit, based on the position of the transmitting antenna provided in the antibody charged in the first radiating tube, Wherein any one of the radiation antennas other than the first radiation antenna is connected to the distribution unit. A satellite navigation signal relaying method for relaying a satellite navigation signal based on noise detected from each of a plurality of launch pipes,
Receiving the satellite navigation signal;
Low-noise amplifying the received satellite navigation signal;
Determining a noise level based on noise detected from each of the radiation antennas included in each of the plurality of launch tubes;
Adjusting a gain of the amplified satellite navigation signal based on the determined noise level;
Distributing the gain-controlled satellite navigation signal to each of the radiation antennas; And
And transmitting the satellite navigation signal whose gain is adjusted through the radiation antennas to the antibodies charged in each of the launch tubes. 9. The method of claim 8, wherein the step of low noise amplifying the satellite navigation signal comprises:
Calculating a minimum value (Imin) and a maximum value (Imax) of the tolerance current range based on the level of the low-noise amplification of the satellite navigation signal; And
Determining a connection state of the reception antenna based on whether a current value detected from a reception antenna receiving the satellite navigation signal falls within a tolerance error current range formed from the minimum value Imin and a maximum value Imax / RTI >
Wherein the minimum value Imin and the maximum value Imax are determined from the following equations (1) and (2).
[Equation 1]

Herein, R4 and R5 are preset different resistance values for calculating the minimum value of the tolerance current range, Vref is the reference voltage, Rsense is the reference resistance, and Avout is the amplification degree in which the satellite navigation signal is the low noise amplified amplification level box.
&Quot; (2) "

Vref denotes a reference voltage, Rsense denotes a reference resistance, and Avout denotes an amplification degree in which the satellite navigation signal is a low noise amplified amplification level. Herein, R1 and R2 are preset different resistance values for calculating the maximum value of the tolerance current range. Meaning. 9. The method of claim 8, wherein determining the noise level comprises:
Detecting a connection state of each of the radiation antennas;
Collecting noise from noise detectors included in radiotelephones normally connected as a result of detection; And
Determining a noise level based on the average value of the collected noise or the intensity of the maximum noise. 9. The method of claim 8,
Wherein the first bullet tube of the plurality of bullet tubes includes:
And a plurality of radiation antennas provided at different positions,
Wherein determining the noise level comprises:
A first radiating antenna corresponding to a position of a transmitting antenna provided in an antibody charged in the first radiator tube among the plurality of radiating antennas and a distribution antenna for distributing the satellite navigation signal with the gain adjusted to each of the radiating antennas, ;
Diagnosing a connection state between the distribution unit and the first radiation antenna; And
Further comprising determining a noise level based on noise detected from each of the plurality of radiating antennas coupled to the distribution unit. The method of claim 11, wherein diagnosing the connection state of the first radiation antenna comprises:
Wherein, when it is diagnosed that the first radiation antenna is not connected, it is determined that any one of the plurality of radiation antennas, excluding the first radiation antenna, Wherein the satellite navigation signal relaying method further comprises the step of:

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