JPH02267498A - Missile - Google Patents

Abstract

PURPOSE:To prevent an unnecessary wave from being erroneously recognized as a target signal and to improve a target killing capacity by providing means for outputting a target signal in which an unnecessary signal generated due to the error of the signal and transmission of the signal due to a compensation unnecessary signal is removed or alleviated. CONSTITUTION:A coupler 17 detects a transmission signal of the output of a transmission source 4. A transmission leakage unnecessary signal extractor 18 generates a transmission leakage compensating unnecessary signal according to a transmission signal detected by the coupler 17 and a demodulation signal of the output of a demodulation signal generator 80. An unnecessary signal removing circuit 190 removes a target signal of the output of a receiver 8 and a transmission leakage compensating unnecessary signal of output of a transmission leakage unnecessary signal extractor 18, and outputs a target signal in which the unnecessary signal is removed. A missile M of such a structure removes or alleviate an unnecessary wave due to the leakage of transmission, and can avoid its influence. The missile M in which a high output and complicated modulation and demodulation are provided can prevent a decrease in a target killing capacity against a target 1.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a flying object that captures and tracks a target. This is intended to improve the ability of flying objects to shoot down targets, which detonate when passing near the flying object or directly hitting the target, causing significant damage to the target.

[Conventional technology]

First, we will briefly explain conventional flying bodies of this type.

In Figure 5, 9M is the flying object, (1) is the target that the flying object M captures and tracks, (2) is the transmitted wave that irradiates the target (1), and (3) is the reflected wave from the target (11). , (4) are the modulation signal and transmission signal of the transmission wave (2) irradiating the target (1).

A transmission source section (5) generates a transmission command signal output from a signal processing section (9), which supplies a transmission signal to a phase shifter (6) that controls the transmission direction of the transmission wave (2), and a receiver section. The circulator (6) supplies the received signal received by the antenna (7) to the receiver section (8) and does not supply it to the transmission source section (4); a phase shifter that controls the beam pointing direction, which is the transmission direction of the received wave (2) and the reception direction of the received wave (3), by a beam control signal output from the beam control unit;
(7) irradiates the transmitted wave (2) to the target (1) and
(70) an antenna for receiving reflected waves (3) from 1;
is a dome that protects the antenna from the outside world, and (aO) is a demodulation signal that generates a demodulation signal for demodulating the received signal from the modulation signal from the transmission source section (4) and the target distance signal from the signal processing section (9). A generator section, (8) is a receiver section that generates a target signal using the received signal received by the antenna (7) and a demodulated signal from the demodulated signal generator section (80), and (9) is the output of the receiver section (8). αQ is for controlling the transmission direction of the transmission wave (2) from the target direction command signal output from the signal processing unit (9). A beam control unit (Ql) outputs a beam control signal to the phase shifter (6), which directs the flight path of the flying object M in the direction of the meeting point with the target ill based on the guidance signal output from the signal processing unit (9). an autopilot that outputs a steering command signal for steering; α4 is an autopilot; The difference is that a proximity detonation pulse is generated when passing near the target (!), and an landing detonation pulse is generated when the target (1) is directly hit.

Or 9 A fuse that generates a detonation signal to detonate the warhead by the landing detonation pulse, (I4 is target + 1), when meeting with the fuse a
A warhead that explodes with a detonation signal of 3 output and causes great damage to target 11), a! 9 is a power source that supplies the necessary power to the components of the flying body M; (IS is a propulsion device that provides thrust to the flying body M;

[Problem to be solved by the invention]

The conventional flying body M is constructed as described above.

The body M is guided towards the meeting point with the target tl) and finally flies to the target! Directly hit 1+ or target (1
), it generates a detonation signal and detonates the warhead +141, causing great damage to target (1).
) to shoot down.

However, if unnecessary signals are input or leak together with the received signal, unnecessary waves will be generated at the receiver section (8).

It is demodulated or modulated, and if its level is high, it will be mistaken as a target signal and will not be guided towards the meeting point with the target.
This was affecting the ability of the flying body to shoot down targets.

Particularly in recent years, as the output of transmission sources has increased and modulation/demodulation systems have become more complex, solving the above-mentioned problems has become an important issue.

The present invention prevents unnecessary waves from being mistaken for target signals by removing or reducing unnecessary waves generated by unnecessary signals included in a received signal.

The aim is to obtain a flying body that improves the ability to shoot down targets.

[Means to solve the problem]

The flying object according to the first invention of the present invention is as follows.

means for detecting a transmission signal; and means for generating a transmission leakage compensation unnecessary signal from the transmission signal and the demodulated signal.

The apparatus is equipped with means for outputting a target signal in which unnecessary signals generated due to transmission leakage leaked into the target signal are removed or reduced by the target signal and the transmission leakage compensation unnecessary signal.

The flying object according to the second invention of the present invention is as follows.

The first invention includes a means for setting a delay amount 2XHM of a transmission signal from an altitude HM of a flying object, and outputting a delayed transmission signal by delaying the transmission signal by the set amount, and a means for outputting a delayed transmission signal by delaying the transmission signal by the set amount, and means for generating an altitude return compensation unnecessary signal; and means for outputting a target signal from which unnecessary signals generated by the altitude return input together with the target signal are removed based on the target signal and the altitude return compensation unnecessary signal. It is equipped with the following.

The flying object according to the third invention of this invention is:

The second invention includes means for detecting the ground speed relative to the antenna beam direction and outputting a ground speed control signal, means for oscillating nine ground frequencies proportional to the ground speed based on the ground speed control signal, and a transmission signal. A mixer that outputs a main rope clutter signal that mixes the transmission signal frequency with the ground frequency and the ground frequency, and the amount of delay of the main rope clutter from the ground distance in the beam direction of the flying object - Fan J
LOX dn l) and outputs a delayed main rope clutter signal which is the main rope clutter signal delayed by the set amount, and a main rope clutter compensation unnecessary signal using the delayed main rope clutter signal and the demodulated signal. and means for outputting a target signal in which unnecessary waves generated by main rope clutter, which are input together with the target signal, are removed or reduced based on the target and main rope clutter compensation unnecessary signals.

The flying object according to the fourth invention of this invention is:

The first invention includes means for generating a modulation signal for spreading a transmission signal by an amount twice the ground frequency proportional to the ground speed by a ground speed control signal of a ground speed detector, and a transmission signal and a modulation signal. The frequency of the transmission signal is twice the ground frequency,
Means for diffusing the transmitted signal and outputting a site rope clutter signal, and outputting a delayed side rope clutter signal in which the delayed iA amount signal of the side rope clutter signal is delayed by the distance between the ground in the beam direction of the flying object and the side rope direction. means for generating a signal not requiring side rope clutter compensation using the delayed side rope clutter signal and the demodulated signal; and means for eliminating or reducing side rope clutter input together with the target signal using the target signal and the signal not requiring side rope clutter compensation. and means for outputting a target signal.

[Effect]

According to the first aspect of the present invention, it is possible to remove or reduce unnecessary waves contained in a target signal due to transmission leakage of a flying object.

In addition, the second invention of the present invention provides the effects of the first invention and other features,
Unnecessary waves included in the target signal can be removed or reduced by the fullitude return.

Further, in addition to the effect of the second invention, the third aspect of the present invention can remove or reduce unnecessary waves contained in the target signal due to main rope clutter.

Furthermore, in addition to the effect of the third invention, the fourth aspect of the present invention can remove or reduce unnecessary waves contained in the target signal due to side rope clutter.

〔Example〕

FIG. 1 is a diagram showing a first embodiment of the present invention.
1) to (Ill, (70) and (80) are the same as in Figure 5.

aη, <Is, (190) is a new device added to FIG.

In other words, (one is a coupler that detects the transmission signal output from the transmission source section (4), and Ql is the transmission signal detected by the coupler (17) and the demodulation signal output from the demodulation signal generator (80). The transmission leakage unnecessary signal extraction section (190) generates the transmission leakage unnecessary signal extraction section (190) based on the target signal of the output of the receiver section (8) and the transmission leakage compensation unnecessary signal of the output of the transmission leakage unnecessary signal extraction section a field. This is an unnecessary signal removal circuit that removes unnecessary signals generated due to transmission leakage that has leaked into the target signal, and outputs a target signal from which the unnecessary signals have been removed.

In the flying object M configured as described above, unnecessary waves due to transmission leakage are removed or reduced.

It becomes possible to avoid that influence. Therefore.

Even in flying vehicles with increased output and complicated modulation/demodulation systems, the ability to shoot down the target (1) can be prevented from decreasing.

FIG. 2 is a diagram showing a second embodiment of the present invention, (
1) to aL (70) and (80) are the same as in FIG.

Ql, (to), (210) is a new device added to FIG.

In other words, Ql is an algorithm that outputs a delayed transmission signal by setting the amount of delay of the transmission signal 2 x Hy (C is the speed of light) from the altitude HM of the flying object M, and delaying the transmission signal by the set amount. Ude return delay circuit, (a)
is a return unnecessary signal extraction unit that generates an altitude return compensation unnecessary signal from the transmitted signal and the demodulated signal, (2
10) inputs the target signal output from the receiver section (8), the transmission leak compensation unnecessary signal and the altitude return compensation unnecessary signal output from the transmission leak unnecessary signal extraction section <11, and extracts the leak in the target signal. This is an unnecessary signal removal circuit that removes unnecessary signals generated due to transmission omissions and unnecessary signals generated due to the altitude return that is input together with the target signal, and outputs the target signal.

In the flying object M configured as described above, unnecessary waves due to the altitude return are removed or reduced,
It becomes possible to avoid that influence. Therefore, even in flying vehicles with high output and complicated modulation/demodulation systems,
This will prevent the ability to shoot down target (1) from decreasing.

FIG. 3 is a diagram showing a third embodiment of the present invention,
+1) ~αe, (70), (ao) are the same as in Figure 2.

? 211~@, (26Q) are new devices added to FIG.

That is, Ql) is a ground speed detector that detects the ground speed with respect to the antenna beam direction and outputs a ground speed control signal.Nine ports are a voltage controlled oscillator (hereinafter referred to as It is called VCO.)
, (to) is a mixer that mixes the transmission signal with the ground frequency and outputs the main rope clutter signal. A delay amount setting circuit that outputs a delayed main rope clutter signal that is a delayed rope clutter signal, c! Reference numeral 9 denotes a clutter-free signal extraction unit that generates a main rope clutter compensation-free signal from the delayed main rope clutter signal and the demodulated signal.

(260) is the target signal output from the receiver section (8) and the transmission leak compensation unnecessary signal output from the transmission leak unnecessary signal extraction section Ql.

Altitude return compensation unnecessary signal and main rope clutter compensation unnecessary signal are input, and the altitude return and main rope clutter compensation unnecessary signals generated due to transmission leakage leaked into the target signal and input together with the target signal are input. This is an unnecessary signal removal circuit that removes or reduces unnecessary signals generated by ivy and outputs a target signal.

In the flying object M configured as described above, it is possible to eliminate or reduce unnecessary waves due to transmission leakage, altitude return, and main rope clutter, and avoid the effects thereof. Therefore, even in a flying vehicle with high output and complicated modulation/demodulation system, the ability to shoot down the target (1) can be prevented from decreasing.

FIG. 4 is a diagram showing a fourth embodiment of the present invention,
tt> ~(Ie, (70) s (8o) is the third
Same foot as the picture.

(2) ~ Kan, (3OO) are new devices added to Fig. 3.

That is, (c) is a modulation signal generator that generates a modulation signal for spreading the transmission signal by an amount twice the ground frequency proportional to the ground speed by the ground speed control signal of the ground speed detector cl]; A spreader that spreads the transmitted signal to twice the ground frequency using the transmitted signal and modulation signal, and outputs a side rope clutter signal. @ is a side rope clutter signal from the ground distance in the side rope direction of the flying object A side delay amount setting circuit that outputs a delayed side rope clutter signal that is delayed by the side rope clutter signal by the amount of delay set. Extracting unit, ((8) target signal output from the receiver unit (8), transmission leak compensation unnecessary signal output from the transmission leak unnecessary signal extraction unit 011, altitude re-turn compensation unnecessary signal, main rope clutter Compensation-unnecessary signals and side rope clutter Unnecessary signals generated due to transmission leakage caused by inputting compensation-unnecessary signals and leaking into the target signal, and altitudinal return, main rope clutter, and side rope clutter that are input together with the target signal. This is an unnecessary signal removal circuit that removes generated unnecessary signals and outputs a target signal.

In the flying object M configured as described above, it is possible to remove unnecessary waves due to transmission leakage, altitude return, main rope clutter, and side rope clutter, and avoid the influence thereof. Therefore, even in flying vehicles with high output and complicated modulation/demodulation systems, the target (
This will prevent the ability to shoot down targets from decreasing in response to 1).

〔Effect of the invention〕

This invention is based on the configuration described above.

It has the effect of improving the ability of the flying body to shoot down the target.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a first embodiment of the invention, FIG. 2 is a block diagram showing a second embodiment of the invention, and FIG. 3 is a block diagram showing a third embodiment of the invention. FIG. 4 is a block diagram showing a fourth embodiment of the present invention, and FIG. 5 is a block diagram showing a conventional flying object. In the figure, (l) is the target, (2) is the transmitted wave, (3) is the reflected wave, (4) is the transmission source, (5) is the circulator,
(6) is a phase shifter, (7) is an antenna, (8) is a receiver section, (9) is a signal processing section, α[ is a beam control section, (lυ is an autopilot, α is a steering device, 0 Ken is the fuse, Q
4) is the warhead, α is the power supply, αe is the propulsion device, Qη is the coupler or transmission leak unnecessary signal extraction unit, α is the altitude return delay/low amount setting circuit, co is the return unnecessary signal extraction unit, (Foundation) is ground speed detector, (To) is VCO, a
(C) is a clutter unnecessary signal extraction section, (C) is a modulation signal generator, (5) is a spreader, (C) is a side delay amount setting circuit, (2) is the side unnecessary signal extraction section. (70) is a dome, (SO) is a demodulation signal generator,
(190). (210), (260), and (300) are unnecessary signal removal circuits 1M. In FIG. 9, the same or equivalent parts are designated by the same reference numerals.

Claims (4)

[Claims] (1) The transmission signal is supplied to a transmission source section that generates a transmission signal of the transmission wave to be irradiated to the target, and a phase shifter that controls the transmission direction of the transmission wave, but is not supplied to the receiver section, and the antenna A circulator that supplies the received signal to the receiver section but does not supply it to the transmission source section, a phase shifter that controls the signal direction of the transmitted wave, and irradiates the transmitted wave to the target and receives the reflected wave from the target. a dome that protects the antenna from the outside world; and a demodulation signal generation section that generates a demodulation signal for demodulating the received signal using the modulation signal from the transmission source section and the target distance signal from the signal processing section. , a receiver unit that generates a target signal using the received signal received by the antenna and the demodulated signal from the demodulated signal generator, and a target direction command signal, a guidance signal, a target distance signal, and a target distance signal from the target signal from the receiver unit; a signal processing unit that outputs a transmission command signal; a beam control unit that outputs a beam control signal for controlling the transmission direction of the transmission wave based on the target direction command signal; and a beam control unit that outputs a beam control signal for controlling the transmission direction of the transmission wave based on the target direction command signal; an autopilot that generates a steering command signal to steer toward the meeting point with the target; a steering device that uses the steering command signal to steer the flight path of the object toward the meeting point with the target; and a proximity detonation pulse when passing near the target. and a fuse that generates a detonation pulse when it directly hits the target, and generates a detonation signal that detonates the warhead with the proximity detonation pulse 3 or the detonation pulse 3, and the detonation signal when it meets the target. A coupler that detects the transmitted signal in a flying body equipped with a warhead that explodes and causes great damage to the target, a power source that supplies the necessary power to the components, and a propulsion device that provides thrust;
a transmission leakage unnecessary signal extraction section that generates a transmission leakage compensation unnecessary signal from the transmission signal detected by the coupler and the demodulation signal from the demodulation signal generation section; A flying object characterized in that it is equipped with an unnecessary signal removal circuit that removes an unnecessary signal generated due to transmission leakage that leaks into a target signal due to a signal that does not require compensation, and outputs a target signal. (2) In the flying object according to claim (1), the amount of delay of the transmission signal (
2.H_M/C) (C is the speed of light), and an altitude return delay amount setting circuit that outputs a delayed transmission signal that delays the transmission signal detected by the coupler by the set amount, and the above-mentioned delayed transmission signal. The flying object according to claim 1, further comprising a return unnecessary signal extracting section that generates an altitude return compensation unnecessary signal to an unnecessary signal removal circuit based on the demodulated signal. (3) A ground speed detector that detects the ground speed relative to the antenna beam direction and outputs a ground speed control signal, a voltage controlled oscillator that generates a ground frequency proportional to the ground speed based on the ground speed control signal, and a coupler. The main rope clutter delay amount (2・H_M /C×sinθ_M) (C is the speed of light, θ_M is the main rope direction), and a delay amount setting circuit that outputs a delayed main rope clutter signal that delays the main rope clutter signal by the set amount, and this delay amount. The present invention is characterized by comprising a clutter unnecessary signal extraction section that generates a main rope clutter compensation unnecessary signal to an unnecessary signal removal circuit using a delayed main rope clutter signal from a setting circuit and a demodulated signal from a demodulated signal generator. A flying object according to claim (2). (4) A modulation signal generator that generates a modulation signal for spreading the transmission signal by an amount twice the ground frequency proportional to the ground speed using the ground speed control signal of the ground speed detector, and the transmission signal detected by the coupler. a spreader that spreads the transmitted signal by an amount twice the ground frequency by the modulated signal from the modulated signal generator and outputs a side rope clutter signal, and a distance between the flying body and the ground in the side rope direction. The delay amount of the side rope clutter signal (2・H_M/C・si
nθ_S_L) (θ_S_L is the side rope direction), and a side delay amount setting circuit that outputs a delayed side rope clutter signal by delaying the side rope clutter signal by the set amount, and demodulates the delayed side rope clutter signal. 3. A flying object according to claim 3, further comprising a side unnecessary signal extraction section that generates a side rope clutter compensation unnecessary signal in an unnecessary signal removal circuit based on the side rope clutter compensation signal.