JP2908938B2 - Flying object guidance method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle mounted on a flying object.
Tracking objects, such as ships,
Of the flying object by the composite sensor of the guidance device for guiding to the target
It relates to a guidance method .

[0002]

2. Description of the Related Art Targets of a conventional flying radar device
As a tracking method, the transmission equipment installed on the ground and flying
Aims at the target with radio waves emitted from a transmitter mounted on the body
And the reflected wave from the target is received by the radar antenna.
There is a trust method. In this case, the target is irradiated with radio waves
Conversely, detection from the target side to the tracking side is likely to be performed.
Not suitable for the purpose of the flying object
There is. In addition, the transmitter mounted on the flying object
To radiate radio waves and receive radio waves reflected from the target.
The antenna of the radar device is called an active radio sensor.
Huh.

[0003] On the other hand, Japanese Patent Laid-Open Publication No.
The active radio sensor and the broadband
Radar system combined with passive passive radio wave sensor
There is a method in which target tracking is performed by using a target. This broadband passive
The radio wave sensor is, for example, a
It is constructed by forming on the outer surface and inner surface,
The target radar emits radiation for various targets in different wavenumber bands.
The target is tracked by receiving a radio wave. I
However, a broadband passive radio sensor has a band of several octaves.
Active radio sensor with narrow band
All have a large beam width and poor tracking accuracy. Also, the goal
If the radar stops transmitting, tracking becomes impossible. others
Target tracking using an active radio sensor.
To compensate for the disadvantages of wideband passive radio sensors
Can be.

[0004] Further, in the prior art US Pat. No. 4,636,797.
So that is shown in Pat radio waves and Cassegrain of the light wave shared
There is a method to track the target with a composite sensor using an antenna.
You. FIG. 15 is a cross-sectional view showing a conventional composite sensor. In the figure, among the Cassegrain antennas used for both active radio waves and light waves, 1 is a primary mirror, 2 is a sub-mirror, 3 is a separating plate that transmits radio waves and reflects light waves. Reference numeral 4 denotes a reflecting mirror for reflecting a light wave.

Next, the operation will be described. The reflected radio waves and light waves from the target are reflected by the primary mirror 1, then reflected again by the secondary mirror 2, and gather on the separation plate 3. Here, the radio wave is
And is received by the radio wave sensor. The light wave is reflected by the separating plate 3 and then reflected by the reflecting mirror 4 to be received by the light wave sensor. Combined use of this radio wave sensor and light wave sensor
The sensor is a lightwave sensor, for example, that senses the thermal radiation of the target
Use

[0006]

Integrated sensor prior [0007] is constituted as described above, since the shared opening surface active wave sensor and optical wave sensor and Les dome to protect the tip of the airframe, Telecommunications and it is necessary that both of the light wave is a material that transmits a problem that restrictions on the materials that can be used is generated, necessary to activate the radio wave sensor, Les domes to not cause aberration for each light wave sensor in a hemispherical shape However, the aerodynamic resistance of the flying object increases, and it becomes difficult to increase the range and the supersonic speed. In addition, a wideband passive radio wave sensor is
If the bandwidth is widened with the antenna, the size will increase, and
Was coming. In addition, a complex having such problems
There was no guidance method for the flying object using the combined sensor.

[0007] The present invention has been made to solve the above problems, expanding the range of choice of Le dome material, long-range of flying object, composite adapted for supersonic reduction < Use of sensors to invite flying objects to improve guidance accuracy
The aim is to obtain a guidance method .

[0008]

Means for Solving the Problems Flying according to the present invention
The body guidance method is an active radio wave sensor on the flying object,
Composite cell with broadband passive radio wave sensor and light wave sensor
Before the above-mentioned flying object meets the target
In the process of guiding the flying object, in the first and middle stages the above-mentioned broadband passive
The radio sensor detects radio waves from the target and identifies the target.
In the end period, from the above active radio sensor
Emit radio waves to the target and receive reflected waves from the target
Of the above-mentioned flying object generated by
Correct the path error to the target, and finally the lightwave sensor
To detect the heat radiation from the target and identify the hit point
In the guidance method of the flying object that guides precisely while
Note that the wideband passive radio sensor is a passive
Equipped with a wave sensor and a passive radio wave sensor for high frequency bands.
Set at target by passive radio wave sensor for low frequency band
After coarse tracking of the radio waves output from the search radar
Targeted by passive radio wave sensor for high frequency band
To precisely track radio waves output from high frequency band radar
It was made.

Further , the active radio wave sensor is
It is installed on the axle of the flying object, and the red
Reflected from the target by radiating radio waves through the
And the above passive radio wave sensor for high frequency band
Open the opening outward from the inner wall near the tip of the radome, and
Receives radio waves output from the target through the radome and
The passive radio wave sensor for low frequency band is equipped with the above radome.
The light wave sensor is provided on a surface near the root, and
Active radio wave sensor above the base of the dome
It is arranged more outside and is provided near the base of the radome.
The heat radiation from the target through the lightwave dome,
The aperture surfaces of the active radio wave sensor and the light wave sensor are
The configuration includes a configuration that is separately arranged.

Further , the active radio wave sensor is
It is installed on the axle of the flying object, and the red
Reflected from the target by radiating radio waves through the
And the above passive radio wave sensor for high frequency band
Serial radome tip inside provided et al is, packages for the low frequency band
The shiv radio sensor is installed on the surface near the base of the radome.
The light wave sensor is located near the base of the radome.
Located outside the active radio sensor
Light dome installed near the base of the radome
The thermal radiation from the target via the
The wave sensor and the aperture surface of the light wave sensor are arranged separately.
It is configured to include the configuration described below.

Further , the active radio wave sensor is
It is installed on the axle of the flying object, and the red
Reflected from the target by radiating radio waves through the
And the above passive radio wave sensor for high frequency band
It is provided on the four sides outside the active radio wave sensor.
Receive radio waves output from the target via the radome,
The low frequency band passive radio wave sensor is
Provided on the surface near the base, the light wave sensor is
Near the base of the radome,
And located near the base of the radome.
Sensing thermal radiation from a target via a lightwave dome
And the aperture of the active radio wave sensor and the light wave sensor
The planes are intended to include configurations that are arranged separately.
You.

The active radio wave sensor may be
The high frequency band provided on the radome surface of the flying object
Passive radio wave sensor is located on the inner wall near the radome tip.
Output from the target via the radome
Passive radio wave sensor for the above low frequency band that receives radio waves
Is provided on the surface near the base of the radome, and the light
The wave sensor is located near the base of the radome and
Located outside the active radio wave sensor,
From the target through the light wave dome provided near the base
Sensing thermal radiation, the active radio wave sensor and the light wave
The aperture surface of the sensor should include a configuration that is arranged separately
It was done.

Further , the active radio wave sensor is
The high frequency band provided on the radome surface of the flying object
Passive radio wave sensor is located on the inner wall near the radome tip.
Output from the target via the radome
Passive radio wave sensor for the above low frequency band that receives radio waves
Is provided on the surface near the base of the radome, and the light
The wave sensor is provided at a tip of the radome, and the
Heat from the target through the lightwave dome at the tip of the
The active radio wave sensor and the light wave sensor.
The opening surface of the sa includes a configuration that is arranged separately
Things.

Further , the active radio wave sensor is
The high frequency band provided on the radome surface of the flying object
Near the base of the radome.
Is disposed outside the active radio wave sensor.
Is it a target by radiating radio waves through the radome of the flying object
From the low-frequency band
The radio wave sensor is installed on the surface near the base of the radome.
The light wave sensor is provided at the tip of the radome.
Through the lightwave dome provided at the radome tip
Active radio sensor that senses heat radiation from the target
And the aperture surface of the light wave sensor is arranged separately.
It is meant to be included.

Further , the active radio wave sensor is
The high frequency band provided on the radome surface of the flying object
The passive radio wave sensor for
Is disposed outside the active radio wave sensor.
Is it a target by radiating radio waves through the radome of the flying object
From the low-frequency band
The radio wave sensor is installed on the surface near the base of the radome.
The light wave sensor is located near the base of the radome.
Yes, disposed outside the active radio sensor,
Through the light wave dome provided near the base of the radome
To detect heat radiation from the target,
The sensor and the aperture surface of the lightwave sensor are arranged separately.
It is intended to include the composition.

[0016]

The composite sensor according to the present invention is an active radio wave sensor for receiving a reflected wave of a radio wave emitted by the target from a target, a broadband passive radio wave sensor for receiving various radio waves radiated by a target radar, and sensing a radiant heat of the target. The light wave sensor is switched or used in common.

Further, the passive radio wave sensor discriminates the specifications and types of the target radar, and identifies the target from the combination thereof.

In addition, the lightwave sensor can process the target image to identify the hit point and improve the guidance accuracy.

[0019]

[Embodiment 1] An embodiment of the present invention will be described below with reference to the drawings. FIG.
FIGS. 1A and 1B are diagrams showing Embodiment 1 of the present invention, in which FIG. 1A is a cross-sectional view and FIG.
In the figure, reference numeral 5 indicates a radio wave transmitting and has a substantially conical shape.
And the radome with a protruding part near the tip, let's fly 6
The center of the opening surface is provided on the body axis, and the radome 5 is provided.
Radiates radio waves toward the target via the
Was active wave sensor for receiving a reflected wave, 7 is mounted to the inner wall of the radome is covered around out an opening to the outside of the radome with a dielectric, the target through the radome 5 radome
Four sensors such as passive radio wave sensor (e.g. a horn antenna for receiving a radio wave of a high frequency band radiated from the
Combination configured), 8 with the base of the radome 5
4 places the near inner and outer surfaces (inner and outer walls near the radome base)
Mounted and radiate from target radome via radome 5
Passive radio sensor for receiving low-frequency radio waves
(For example, log-periodic antenna) , 9 is the flying body
It is arranged diagonally to the outside and outside the active radio wave sensor 6.
At the side position, joined to the above protrusion in the radome 5 surface
Dome that passes through the light wave, 10 is inside the radome 5
The active radio sensor 6 is provided near the base of the part.
Outside, for example, to release heat from the target.
Figure 2 shows a lightwave sensor that senses radiation .

The composite sensor of the present invention is configured as described above.
The active radio wave sensor 6 and the passive radio wave
Sensor 7, passive radio wave sensor 8, and light wave sensor 9 open.
The mouth is separated without being shared. Radome 5 and light wave
A dome 9 are separated, can be used with different members each other
Therefore, the radome for transmitting the light wave to the radome 5
Restrictions on materials used and shape are eased, and aerodynamic resistance
Has a substantially conical shape that reduces the effects of
be able to.

Further, a flying device equipped with the composite sensor of the present invention is provided.
After being fired from the mother aircraft,
Is induced as follows. First, the flying object meets the target
In the early and middle stages of the flight guidance process until
Such as by passive wave sensor 7 and 8, for example, ship
Radio waves from the target radar are received, the radio waves are compared with the information on the target ship radar obtained from the motherboard to identify the target, and to guide the flying object toward the target in the first mid-term . this
When the passive radio wave sensor is
Wave sensor 7 and passive radio wave sensor 8 for low frequency band
If the distance to the target is long in the initial mid-term guidance,
The low level output from the search radar etc.
Frequency and high-power radio waves are transmitted to log-periodic antennas (accuracy is
Coarse tracking with passive radio sensor 8
I do. And the longer the distance to the target in the first mid-term guidance
If it becomes shorter than degrees, the fire control radar set for the target, etc.
High-frequency, low-output radio waves output from
Precise tracking with passive radio sensor 7 with good accuracy
Do. Next, in the end period, after correcting the path error with respect to the target caused by the first-middle guidance by the active radio wave sensor 6, the target image is finally processed by the light wave sensor 10.
While performing hit point identification, precise guidance is realized by composite processing. In the event of obstruction,
Combined passive and light wave guidance without using radio wave sensor 6
To deal with.

Incidentally, Japanese Patent Application Laid-Open No. 1-233381 describes that
Uses active radio wave sensor and broadband passive radio wave sensor
Was described about the combined radar system,
Active radio wave sensor like this invention and broadband passive
Flying using three types of sensors, a radio wave sensor and a light wave sensor.
It does not show how to guide the housing.

Embodiment 2 FIG. In the first embodiment, as shown in FIG. 1, the passive radio wave sensor (for high frequency band) 7 is installed on the inner wall near the tip of the radome 5 and the opening is made to go outside, but as shown in FIG. The same operation can be expected even if the wideband passive radio wave sensor 7 is installed at the tip of the radome 5.

Embodiment 3 FIG. In the first embodiment, as shown in FIG. 1, a passive radio wave sensor (for high frequency band) 7 is installed on the inner wall near the tip of the radome 5, the opening is made outside, and the light wave sensor 10 is installed below the active radio wave sensor 6. However, as shown in FIG. 3, a wide-band passive radio wave sensor (for high frequency band) 7 such as a two-arm spiral antenna is installed around the active radio wave sensor 6 and the light wave sensor 10 is arranged at the tip of the radome 5. Similar behavior can be expected. At this time, the light wave dome 9
Has a hemispherical shape and the radome 5 has a truncated cone shape.
The light wave dome 9 is positioned at the tip of the radome 5.
It is joined to the dome 5.

Embodiment 4 FIG. In the first embodiment, as shown in FIG. 1, a passive radio wave sensor (for high frequency band) 7 such as a horn antenna is installed on the inner wall near the tip of the radome 5 and the opening is made outward. Although installed at the center, as shown in FIG. 4, a wideband passive radio wave sensor (for high frequency band) 7 such as a two-arm spiral antenna is installed on the inner wall near the tip of the radome 5, and an active radio wave sensor 6 such as a transmission / reception module system is mounted. The same operation can be expected even if it is installed on the entire radome surface.

Embodiment 5 FIG. In the fourth embodiment, the light wave sensor 10 is installed on the side of the radome as shown in FIG. 4, but the same operation can be expected even if it is installed at the tip of the radome 5 as shown in FIG. .

Embodiment 6 FIG. In the fifth embodiment, the passive radio wave sensor (for high frequency band) 7 is installed on the inner wall near the tip of the radome 5 as shown in FIG. The same operation can be expected even if the wideband passive radio wave sensor 7 is installed on the side of the radome 5.

Embodiment 7 FIG. In the sixth embodiment, the light wave sensor 10 is installed at the tip of the radome 5 as shown in FIG. 6, but the same operation can be performed even if the light wave sensor 10 is installed at a position facing the passive radio wave sensor (for high frequency band) 7 as shown in FIG. Can be expected.

It should be noted in the embodiment shown in FIGS. 2-7 and divided wideband passive radio wave sensor in a radio wave sensor 7 for high-frequency band and a radio wave sensor 8 for the low frequency band, which is carried out
As in Example 1, when the flying object is guided, when the distance to the target is long, a radio wave from a search radar or the like (low frequency, high output) is transmitted to a radio wave sensor 8 such as a log periodic antenna (the accuracy is not very good). When the distance to the target is reduced to a certain extent or more, fire control radar, etc. (high frequency, low output)
This is because the radio wave is precisely tracked by the radio wave sensor 7 (with high accuracy) such as a spiral antenna.

[0030]

As in the above, according to the present invention, according to the present invention, Aku
Active radio sensor, passive radio sensor for low frequency band,
Passive radio wave sensor high-frequency band, taking advantage of the respective characteristics of the four sensors of the light wave sensor, excessive induction of flying object
In the first and middle stages of the process, a passive radio wave sensor for low frequency band
After identifying the target and performing coarse tracking,
Performs precise tracking with a passive wave sensor for wavenumber bands.
Correct the path error with the active radio sensor, and finally
Precise guidance while identifying hit points with sensors
Therefore, guidance with excellent anti-jamming properties and high precision is possible.
Also, passive radio wave sensors are used for low frequency band and high frequency band.
Of the flying object guidance process
In addition to improving the guidance accuracy in the first and middle stages, it is possible to adopt an antenna of a method suitable for each frequency band, which has the effect of alleviating restrictions on mounting and restrictions on performance.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention.

FIG. 2 is a diagram showing a second embodiment of the present invention.

FIG. 3 is a diagram showing a third embodiment of the present invention.

FIG. 4 is a diagram showing a fourth embodiment of the present invention.

FIG. 5 is a diagram showing a fifth embodiment of the present invention.

FIG. 6 is a diagram showing a sixth embodiment of the present invention.

FIG. 7 is a diagram showing a seventh embodiment of the present invention.

FIG. 8 is a sectional view showing a conventional composite sensor.

[Description of Signs] 1 Primary mirror 2 Secondary mirror 3 Separation plate 4 Reflector 5 Radome 6 Active radio wave sensor 7 Passive radio wave sensor (for high frequency band) 8 Passive radio wave sensor (for low frequency band) 9 Light wave dome 10 Light wave sensor

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Nobuo Kumagai 325 Kamimachiya, Kamakura City Kamakura Works, Mitsubishi Electric Corporation (56) References JP-A-6-58700 (JP, A) JP-A-5-340695 (JP, A) JP-A-5-164838 (JP, A) JP-A-4-315982 (JP, A) JP-A-4-113286 (JP, A) JP-A-3-208000 (JP, A) 62-142699 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) G01S 3/76-3/789 G01S 7/00-7/50 G01S 13/00-13/95 G01S 17/00-17/88 F42B 15/01 G05D 1/12

Claims (8)

(57) [Claims] 1. An active radio wave sensor on a flying object,
Composite sensor with band-passive radio wave sensor and light wave sensor
Flight until the above-mentioned flying object meets the target.
During the induction process of the body, the above-mentioned broadband passive
Do not detect the radio wave from the target with the wave sensor to identify the target.
At the end of the course, the active radio sensor
To radiate radio waves to the target and receive reflected waves from the target
Therefore, the eyes of the flying object generated by the induction
Correct the path error for the target, and finally
Therefore, do not detect the heat radiation from the target and identify the hit point.
In the method of guiding flying objects for precise guidance,
Broadband passive radio sensor is passive radio wave for low frequency band
Sensor and a passive radio wave sensor for the high frequency band.
Targeted by passive radio wave sensors for frequency bands
After roughly tracking the radio waves output from the search radar
High target set by passive radio wave sensor for frequency band
To accurately track radio waves output from frequency band radar.
Characteristic flying object guidance method. 2. The active radio wave sensor according to claim 1 , wherein
The radome of the flying object is installed on the axis of the housing
And radiates radio waves to receive reflected waves reflected from the target.
The passive radio wave sensor for high frequency band
Open the opening outward from the inner wall near the tip of the dome.
Receive the radio wave output from the target via the
The passive radio wave sensor for frequency band is
The light wave sensor is provided on a nearby surface, and the red
Near the base of the
It is arranged outside and is provided near the base of the radome.
Heat radiation from the target through the lightwave dome
Active radio wave sensor and the aperture surface of the above light wave sensor are separated
2. The flying device according to claim 1, wherein
How to guide the body. 3. The method according to claim 1, wherein the active radio wave sensor includes
The radome of the flying object is installed on the axis of the housing
And radiates radio waves to receive reflected waves reflected from the target.
The passive radio wave sensor for high frequency band
Provided inside the dome tip, passive for the above low frequency band
The radio wave sensor is installed on the surface near the base of the radome.
The light wave sensor is located near the base of the radome.
Ri, is disposed outside the upper Symbol active radio wave sensor, the upper
Through the light wave dome provided near the base of the radome
To detect heat radiation from the target,
And the aperture surface of the lightwave sensor are placed separately
The method for guiding a flying object according to claim 1, characterized in that: 4. The active radio wave sensor according to claim 1 , wherein
The radome of the flying object is installed on the axis of the housing
And radiates radio waves to receive reflected waves reflected from the target.
The passive radio wave sensor for the high frequency band is
Provided on the four sides outside the active radio wave sensor.
Receive the radio wave output from the target through the dome, and
The passive radio wave sensor for low frequency band has the above radome.
Provided on the surface near the root, the lightwave sensor is
Near the base of the
And located near the base of the radome.
Heat radiation from the target through the
The active wave sensor and the light wave sensor
2. The fly according to claim 1, wherein the fly is arranged apart.
How to guide the housing. 5. The active radio wave sensor according to claim 1 , wherein
Provided on the surface of the radome of
The passive radio sensor is installed on the inner wall near the radome tip.
Radio wave output from the target through the radome
And the passive radio wave sensor for the low frequency band
Provided on the surface near the base of the radome,
Is located near the base of the radome and
To the outside of the radio wave sensor and attach the radome
Heat release from the target through the lightwave dome near the root
The active radio wave sensor and the light wave sensor.
The opening face of the sa is arranged separately.
Item 1. The method for guiding a flying object according to Item 1. 6. The active radio wave sensor according to claim 1, wherein:
Provided on the surface of the radome of
The passive radio sensor is installed on the inner wall near the radome tip.
Radio wave output from the target through the radome
And the passive radio wave sensor for the low frequency band
Provided on the surface near the base of the radome,
The radome is provided at the radome tip, and the radome tip
The heat radiation from the target through the lightwave dome
The knowledge, the active radio wave sensor and the opening of the light wave sensor
The mouth face is arranged separately.
How to guide the flying object. 7. The active radio wave sensor according to claim 1 , wherein
Provided on the surface of the radome of
The passive radio sensor is located near the base of the radome,
Disposed outside the active radio wave sensor,
Radio waves are radiated through the radome of the body and
Received the reflected wave, and the passive
The wave sensor is provided on the surface near the base of the radome.
The light wave sensor is provided at the radome tip,
Target via the lightwave dome provided at the tip of the radome
From the active radio sensor
The aperture surface of the optical sensor is separated
The method for guiding a flying object according to claim 1, wherein 8. The method according to claim 1, wherein the active radio wave sensor includes
Provided on the surface of the radome of
The passive radio sensor is located near the base of the radome,
It is located outside the active radio wave sensor and
Radio waves are radiated through the radome of the housing and reflected from the target
Received the reflected wave, and the passive radio wave for the low frequency band
The sensor is provided on a surface near the base of the radome,
The light wave sensor is near the base of the radome,
It is arranged outside the active radio wave sensor, and
Eye through the light wave dome provided near the base of the dome
Detects thermal radiation from the target and
It is noted that the aperture surface of the light wave sensor is arranged separately.
The method for guiding a flying object according to claim 1, wherein