JPS592000A - Guidance system of missile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flying body guidance system.

Generally, in order for a plurality of flying objects to accurately reach a plurality of targets located at long distances, it is necessary to guide the flying objects to each target individually from a base station.

In this case, when the shapes of the multiple targets are small and the relative positions of the targets are dispersed in a close range, conventional active or passive radio wave homing cannot be used to target the same target with a large radar reflection cross section or brightness temperature. It had the disadvantage that it was likely to be reached in a concentrated manner.

The present invention has been made in order to eliminate the above-mentioned drawbacks, and it is possible to fly a plurality of reachable pretensioned bodies toward a long-distance target with high accuracy. The robot is mounted on a target body, and guided by the base station, the five main targets are guided to reach a predetermined long-distance position, the pre-tensioned target bodies are assigned to the target, and after being separated from the main target body. provides a guidance system for a flying object that uses microwave sensors in each pretensioned object to accurately guide the pretensioned object to the assigned target.

Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, at 5, a short distance Rs (
A plurality of (for example, 7) pretensioned 5 bodies 2 capable of flying at a distance of about 30 mm are mounted on a master body 3 as shown in FIG. The main body 3 capable of flying R3 (for example, about 5073) is mounted on the launcher 4 of the person at the firing point.

Each pretensioned body 2 is connected to a target group 1 as shown in FIG.
and a control device 6 that processes the detection signal of the microwave sensor 5 to control the flight direction, and also includes a microwave sensor 5 that detects the short distance R1.
It is equipped with a propulsion means 7 sufficient to fly the target group 1 and reach the target group 1.

The wc4 diagram shows the i-lunar beam 13 of the antenna in each pretensioned body 2, and 14 shows its central beam. Further, FIG. 5 shows an example of a specific circuit configuration of the microwave sensor 5. In this figure, below the dashed-dotted line is a reception block diagram, in which 20 is a reception radiator, 21 is an isolator, 22 is a mixer preamplifier, 23 is an intermediate frequency amplifier, 24 is a local oscillator, 25 is a wave detector, 26 is a video amplifier, and 27 is a signal processing section. In this case, the receiving radiator 20 corresponds to one receiving beam shown in FIG. 4, and an independent receiver outputs a video signal given to the signal processing section 27 for each receiving beam. It's turning 5.

Next, in the transmission boot chart above the dashed line, 30
is a transmission-order radiator, 31 is a transmitter, 32 is a modulator, 3
3 is a human FC mixer, 34 is a human FC amplifier, and 35 is an AFC.
, 36 indicate a synchronization signal generator. Here, the transmitting radiator 30 is for transmitting gastric juice from the microphone using the central beam 14 shown in FIG.

On the other hand, as shown in FIG. 2, after reaching the point B in FIG. In conjunction with the microphone gastric juice receiver in the body 2, the distribution state of the target population 10 is detected, the target is distributed to each pretensioned body 2, and each pretensioned body 2 is
A signal processing device 9 performs a series of signal processing and control until the microphone starts homing independently toward each target according to the target distribution, and a signal processing device 9 processes guidance signals from the base station to control the flight direction) It is equipped with a control device 1'0 for rolling, a propulsion means 11 sufficient to fly the long distance R2, and a separation device 12 for separating each pretensioned body 2 mounted thereon. Here, the microphone gastric juice transmitter 8 is capable of emitting radio waves in a transmission coverage area 16 that includes a collective coverage area 15 formed by a collective configuration of five multi-beam antennas 2 each pre-stretched as shown in FIG. be.

Now, in the above configuration, the master drawing body 3 carrying the pretensioning body 2 is flown by the propulsion means 11 by ground guidance or inertial guidance from the base station, and each pretensioning body 3 is carried out at a predetermined position. A target corresponding to the number of pretensioned bodies 2 to be mounted is reached to a long-range position B where targets corresponding to the number of pretensioned bodies 2 to be mounted can be captured within a collective coverage area 15 formed by a collective configuration of multi-beam antennas of the body 2.

At the far-field position B, the microphone gastric fluid transmitter 8 mounted on the master ultrasound body 3 is activated to radiate radio waves toward the target group 1 in the transmission coverage area 16 that includes the multi-beam collective coverage area 15.

The reflected waves from the target group 1 are received by a receiver in the i-microwave sensor 5 of the pretensioned body 2 constituting the group coverage area 15. The coverage area of each pretensioned body 2 constituting the nuclear assembly coverage area 15 constitutes a multi-beam receiving antenna, and in this embodiment, it is composed of 19 beams as shown in FIG. 4.

The receivers in each of the 5 preconditioned beams 2 automatically set the average value of the 19 beams as a "threshold" value, and determine that anything exceeding the "threshold" value is a target signal. The target signal sensed by the receiver of each pretensioned flying body 2 is temporarily stored in the signal processing device 9 of the parent flying body 3 in the form of coordinates of the relative position of the target. When this target position shifts to the edge of the collective coverage area 15 as shown in Fig. 7,
Assuming that the center of target group 1 is in the offset direction, the course of parent projectile 3 is changed toward the center of target group 1. When the number of flying bodies 2 reaches 20, or when it is determined that the target is distributed in the center of the collective coverage area 15, the signal processing device 9 of the parent flying body 3 causes the pretensioned flying body 2 to cross as it heads toward the target. Then, each pretension body 2 is commanded to have a target distribution that prevents mid-air collision. Each pretensioned body 2 that has received a target assignment dissolves the collective coverage area 15 consisting of the multi-beam antennas of each pretensioned body 2 at the same time as the target assignment, and each pretensioned body 2 has its own multi-beam antenna. The antenna is directed to the target assigned coordinates and the antenna gimbal is controlled to capture the assigned target with the center beam 14 of the multi-beam 13. At the same time as the target acquisition, the transmission of microwaves is switched from the main flying body 3 to the small transmitter 31 provided in the microwave sensor 5 of the pretensioning body 2, and the central beam shown in FIG. 14 will be used for sending and receiving from now on. In this case, target tracking is performed from the center to the beam 1 as shown in Figure 8.
A plurality of pairs of opposing beams surrounding the beam A.

By comparing the signal amplitudes of A', B, B', and C2σ, an angular error signal is generated, the pointing direction of the antenna is controlled, and tracking of the target is started. That is, in the configuration of the microwave sensor 5 shown in FIG. 5, a transmission pulse is radiated from the transmitter 31 to the target from the transmission radiator 30 as the center beam 14, and the target signal and background from above the radar coverage area are emitted. The noise is detected and amplified by each receiver of the seven channels of receiving multi-beams shown in FIG.・In other words, the signal received by each receiving radiator 20 is sent to the isolator 2
1, is converted to an intermediate frequency in a mixer preamplifier 22, is amplified in an intermediate frequency amplifier 23, and is then transmitted to a detector 2.
5 and amplified by a video amplifier 26, the signal is input to a signal processing section 27.

The signal processing unit 27 calculates the average value of the video signal outputs of the seven channels corresponding to each receiving beam, and determines the level of each of the video signal outputs of the seven channels using the average value as a threshold e level. . As a result of this level determination, the background (ri2 ivy) is removed because it is below the threshold level. And the level was determined 7
Antenna control is performed by the video signal output of the channel receiver. In this case, if the target signal is received by a beam other than the center beam 14 of the multi-beams, the angle between the received beam and the center beam 4 is used as an angular error voltage to control the pointing direction of the antenna, and the center beam 14 is used to target the target signal. Control the antenna to enable acquisition. Then, at the same time as the target is captured by the center beam 14, the amplitude difference is extracted by comparing the signal amplitudes of three pairs of opposing beams surrounding the center beam as shown in FIG. 8 to create an angular error voltage. This controls the pointing direction of the antenna and always captures the target with the center beam 14.

At the same time as each pretensioning body 2 starts tracking its respective target, each pretensioning body 2 also separates from the parent flying body 3 and reaches its respective assigned target.

As is clear from the above description, the present invention has a plurality of pre-tensioned flying bodies mounted on a parent flying body, and the parent flying body Z5 is guided over a predetermined long distance by guidance from a base station or inertial guidance. This is a guidance system for a flying object, in which the flying object is made to reach a target group, and at that point, a pretensioned object corresponding to the target group is assigned, and each pretensioned object is made to reach the assigned target group using microphone four-wave guidance. This eliminates the complexity of guidance required by individual launches as in the past, and eliminates the drawback that the pretensioned body concentrates and reaches only targets with a large radar cross section.
Efficiency (we can obtain a spacecraft ws guidance system in which each pretensioned body can reach each target with precision.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing the relationship between the projectile and the target group;
Figure 2 is a side view showing the pre-tensioned body and the master body, Figure 3 is a schematic cross-sectional view of the master body equipped with the pre-tensioned body, and Figure 4 is the pre-tensioned body. A configuration diagram of a multi-beam antenna, Fig. 5 is a four-dimensional diagram showing the specific configuration of a microphone gastric juice sensor with a pre-tensioned body, and Fig. 6 shows reception by a collective configuration of seven multi-beam antennas in the pre-tensioned body. Fig. 7 is a configuration diagram showing the target group coverage area and the transmission beam of the main object, and Fig. 7 shows the effect of moving the main object to the center when the base station guidance or inertial guidance deviates from the center of the target group. FIG. 8 is a diagram showing a plurality of pairs of beams surrounding a central beam of a pretensioned body. R1... Short range, R2... Long range, A... Flying object launch point, B... Long distance position, 1... Target group,
2... Pretensioned body, 3... Main drawing body, 4...
- Launcher 15... Microwave sensor of pretensioned body, 6... Control device of pretensioned body, 7... Propulsion device of pretensioned body, 8... Microwave of main stroke body Wave transmitter, 9... Master picture signal processing device, 10
...control device for the main drawing body, 11...propulsion device for the main drawing body, 12...separation device for the five main pre-stretching bodies, 13... for the pre-stretching body. Multibeam, 14...
Central beam of multi-beam of pretensioned body, 15...
Set overturn by collective configuration of 5 multi-beam antennas, 16... Main picture: 5 microwave transmission beams. Patent applicant Yukie Omori, Director of Technology Research Headquarters, Defense Agency, Attorney Takashi Murai Figure 1 Figure 2 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] (1) A main body capable of flying toward distant targets is equipped with multiple pretension bodies capable of flying toward short-range targets, and guided from the launch base to target targets. I made the 5 parent fly bodies fly and prepared for the parent image body.
The master beam body reaches the apogee where the target group can be captured within the multi-beam collective coverage area of the radar, which is composed of a four-wave microphone transmitter and a multi-beam microphone four-wave receiver provided in each pretension body. The radar is activated at the specified position to detect the target, and the number of targets and the relative position of each target are temporarily stored in the signal processing unit of the main body in coordinate form. When the detection shifts toward the edge of the multi-beam collective coverage area, it is assumed that the center of the target cluster is in the direction of the shift, and the flight path of the 15 master images is changed so that the number of targets increases as described above. When the number of tension bodies is reached or it is determined that the group of targets is distributed in the center of the multi-beam collective coverage area, the target is assigned to each pre-tension body and the multi-beam collective coverage area is configured at the same time. The antennas of the pretensioned body release their collective state and direct the center beam of the multi-beam antenna to the target assigned to each pretensioned body, while at the same time directing the transmission of microphone μ waves to the main body. Switching from transmission to transmission for each pretensioned body, transmits from the center beam of the multi-beam antenna toward the assigned target, starts target tracking for each pretensioned body, and at the same time A flying body guidance system characterized by separating each pretensioned body from the parent body.