JPH0561691U - Guided flight - Google Patents

Abstract

(57) [Summary] [Purpose] The aim is to accurately guide the guided vehicle to high-speed / high-turn targets and receed targets. [Structure] A relative velocity detector 14 that outputs a relative velocity signal between the target and the guide vehicle, a velocity detector 15 that outputs a velocity signal of the guide vehicle, and a bias corresponding to the relative velocity signal is added to the error signal. Bias error signal generator 16 for outputting a bias error signal, proximity detonation pulse delay circuit 17 for delaying and outputting a proximity detonation pulse according to the relative speed, and association time calculation unit 18 for calculating and outputting an association time with a target. , An incapacitating speed detecting circuit 19 for outputting an incapacitating signal according to a relative speed, and an initiating and initiating pulse generating circuit for controlling an output of an initiating and initiating pulse in accordance with a combination of an association time signal and an incapable inactivating signal output 20. [Effect] It improves the accuracy of guiding the guided vehicle to high-speed / high-turning targets and receeding targets, and improves the target shooting ability.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a guided vehicle that extracts and tracks a target by extracting a target signal from infrared rays emitted from the target.

[0002]

[Prior Art]

 Fig. 2 is a schematic diagram of a conventional guided vehicle of this type. In the figure, M is a guided flying object, 1 is a target that the guided flying object captures and tracks, and 2 is radiation from target 1. Infrared, 3 is an optical system for receiving infrared rays emitted from the target 1, 4 is a receiving device that locks on the target from the received signal received by the optical system 3 and generates a target signal, 5 is an output target of the receiving device 4. An error signal generator that extracts an error signal from the signal, 6 is an optical system servo device that drives the optical system 3 in the direction of the target 1 from the output of the error signal generator 5, and 7 is an error in the output of the error signal generator 5. A steering device that steers the flight path of the guided vehicle M in the direction of meeting with the target 1 by a signal, 8 is a proximity fuze that generates a close detonation pulse when the guided vehicle M passes near the target 1, and 9 is When the guided vehicle M directly hits the target 1. A firing signal generating circuit for generating a firing pulse, 10 is a firing signal generating circuit for generating a firing signal when a proximity firing pulse of the output of the proximity fuse 8 or a firing pulse of the output of the firing tube 9 is input, and 11 is a firing signal. Ammunition that explodes due to the detonation signal of the output of the signal generation circuit 10 and causes great damage to the target 1, 12 is a guided aircraft, a power supply that supplies power to each component of the M, 13 is a guided aircraft It is a propulsion device that gives thrust to M.

Next, the operation will be described. When the error signal is extracted from the radiated infrared ray 2 of the target 1 received by the optical system 3 and self-guided in the direction of the meeting point with the target 1, finally when the guided flying body M passes near the target 1. Or when it hits directly, it detonates ammunition 11 and causes great damage to target 1 and shoots it down.

[0004]

[Problems to be Solved by the Invention] Since the conventional guided vehicle M is configured as described above, the plume, which is the gas discharged from the rear of the target with a large amount of radiated infrared rays, is used as the tracking center for high-speed operation. There was a drawback in that the guidance accuracy deteriorated for high-turn targets, and the target shooting ability of the guide vehicle fell. Also, in the case of a reseed target, there was a drawback in that the plume, which is the gas discharged from the rear of the target, was detected, and a proximity detonation pulse was generated, causing an early detonation. Furthermore, if the relative speed is too fast, the timing of the detonation cannot be timed, and even if the detonation occurs, the target will pass and the damage cannot be done to the target.

The present invention has been made to solve the above problems, and improves the guidance accuracy by generating an error signal by apparently displacing the tracking center in the direction of the target aircraft, and also for high-speed targeting. In order to improve the target defeat ability of the guided flying object by detonating before detecting the target and preventing the warhead fragments from passing before hitting the target. And

[0006]

[Means for Solving the Problems]

 The guided vehicle according to this invention calculates the relative velocity between the target and the guided vehicle from the target signal, outputs the relative velocity signal, and detects the velocity of the guided vehicle and outputs the velocity signal. And the relative speed signal and the speed signal are compared.If the relative speed signal is larger, the bias signal is a positive bias plus the error signal, and if the relative speed signal is smaller, the bias is a negative bias plus the error signal. A means for outputting an error signal is compared with the relative velocity signal and the velocity signal is compared.If the relative signal is larger, the proximity firing pulse is output without delay, and if the relative signal is smaller, the proximity firing pulse is output. A means for outputting a delay corresponding to the relative speed signal and outputting it, a means for calculating the meeting time with the target from the relative speed and relative distance information and outputting a meeting time signal, and a relative speed signal When it reaches or exceeds a certain level, it outputs a high level incapability signal, and when it is below a predetermined speed, it outputs a low level incapacity signal. When is high level, if the meeting time is within the predetermined time, the arrival and initiation pulse is output even if the arrival and initiation pulse is not input, and when the disabling signal is low level, the meeting time signal is within the predetermined time. Even then, it is equipped with a means that does not output the arrival-detonation pulse until the arrival-detonation pulse is input.

[0007]

[Action]

 In this device, when the optical system is turned toward the target and self-guided toward the target's meeting point after lock-on to the target, the plume with a large amount of radiated infrared rays was used as the center of tracking in the past. Since the guidance signal is generated by apparently displacing the center, the guidance accuracy is improved and the target destroying ability of the guidance aircraft can be improved. Also, if the target is detected and then detonated, the target will pass before the projectile hits the target and damage will not be given to the target before the target is detected. The target's ability to destroy the guided vehicle can be improved by detonating and preventing warhead fragments from passing before hitting the target.

[0008]

【Example】

 Example 1. FIG. 1 is a view showing an embodiment of the present invention. Reference numerals 1 to 13 are exactly the same as the conventional apparatus, and 14 to 20 are apparatuses newly added to the conventional apparatus. 14 is a relative velocity detector that calculates the relative velocity between the target and the guided vehicle and outputs a relative velocity signal, 15 is a velocity detector that detects the velocity of the guided vehicle and outputs a velocity signal, and 16 is The relative speed signal is compared with the speed signal. When the relative speed signal is larger, a positive bias is added to the error signal. When the relative speed signal is smaller, a bias that outputs a negative bias to the error signal is output. The error signal generator, 17 compares the relative velocity signal with the velocity signal, and outputs it without delay if the relative velocity signal is larger, and outputs the proximity detonation pulse if the relative velocity signal is smaller. Proximity detonation pulse delay circuit that delays and outputs according to the relative speed signal, 18 is a meeting time that calculates the meeting time with the target from the relative distance information between the relative speed and the target, and outputs the meeting time signal. An interim calculation unit, 19 is an incapacitating speed detection circuit that outputs a high level disabling signal when the relative speed is higher than a predetermined speed and a low level when the relative speed is lower than the predetermined speed, and 20 is a meeting. When the time signal, the disabling signal, and the initiation and detonation pulse from the initiation and detonation pulse are input, they are output as they are, and when the disabling signal is high level, the meeting time signal is within the predetermined time. Even if the arrival-detonation pulse is not input, the arrival-detonation pulse is output even if the arrival-detonation pulse is not input. This is an initiation / detonation pulse generation circuit that does not output the initiation / detonation pulse until the initiation / detonation pulse is input.

[0009] The guide vehicle constructed as described above has the optical system directed toward the target direction, and after the lock-on to the target, the guide point of the target point is changed from the plume to the direction of the target contact point. Guidance accuracy is improved because it can be made to face the aircraft, and if the target is detected and then detonated, the target passes through before the bullet fragment hits the target and damage to the target is prevented. For a high-speed high-turn target, the target's destructive ability can be improved by detonating before hitting the target and preventing the warhead fragments from passing before hitting the target.

[0010]

[Effect of the device]

 This device has the effect of improving the target shooting ability of the guided vehicle for the high-speed / high-turn target and the receed target by the configuration as described above.

[Brief description of drawings]

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

FIG. 2 is a block diagram showing a conventional guide vehicle.

[Explanation of symbols]

 1 Target 2 Radiant Infrared 3 Antenna 4 Receiver 5 Error Signal Generator 6 Optical System Servo Device 7 Steering Device 8 Proximity Fuze 9 Arrival and Discharge Tube 10 Detonation Signal Generation Circuit 11 Ammunition 12 Power Supply 13 Propulsion Device 14 Relative Speed Detector 15 Speed Detection Device 16 Bias error signal generator 17 Proximity detonation pulse delay circuit 18 Meeting time calculation unit 19 Incapacitating velocity detection circuit 20 Arrival and detonation pulse generation circuit M Induction flight

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location G01S 13/88 F 7015-5J G05D 1/12 G 7828-3H

Claims (1)

[Scope of utility model registration request] 1. An optical system antenna for receiving radiated infrared rays from a target, a receiving device for locking on the target based on a signal received by the optical system antenna and generating a target signal after the target lock-on, and an error signal for the target signal. An error signal generator that extracts, an optical system servo device that drives the optical system in the target direction from the error signal, a steering device that steers the flight path in the direction of meeting the target from the error signal, and a proximity detonation when passing near the target. Proximity fuze that generates a pulse, arrival and detonation tube that generates an initiation and detonation pulse when directly hitting a target, detonation signal generation circuit that generates an detonation signal that detonates ammunition by a proximity detonation pulse or an initiation detonation pulse, and a target At the time of the meeting with the In the obtained guided vehicle, a relative speed detector that calculates the relative speed with the target from the target signal and outputs the relative speed signal, and a speed detector that detects the speed of the guided flying object and outputs the speed signal, Compares the relative speed signal with the speed signal, and outputs a bias error signal with a positive bias added to the error signal when the relative speed signal is larger and a bias error signal with a negative bias added to the error signal when the relative speed signal is smaller The bias error signal generator compares the relative velocity signal with the velocity signal.If the relative velocity signal is larger, the proximity detonation pulse is output as it is without delay, and if the relative velocity signal is smaller, the proximity Proximity detonation pulse delay circuit that outputs a detonation pulse with a delay according to its relative velocity signal and calculates the meeting time with the target from the relative distance information between the relative velocity signal and the target , A meeting time calculation unit that outputs a meeting time signal, and a high level when the relative speed signal exceeds a predetermined speed, and an incapacitation signal that outputs a low level disable signal when the relative speed signal is below a predetermined speed. From the speed detection circuit, the meeting time signal, the disabling signal, and the incoming and outgoing detonation pulse, when the incoming and outgoing initiation pulse is input, it is output as it is, and when the inactivating signal is high level, the meeting time signal is a predetermined If it is within the time, it will output the start-up and start-up pulse even if the start-up and start-up pulse is not input, and when the disabling signal is low level, the start-up and start-up pulse will be input even if the meeting time signal is within the predetermined time. An induction vehicle characterized by being provided with an arrival / detonation pulse generation circuit that does not output an arrival / detonation pulse until it is activated.