JPS60108700A - Guided 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] [Technical Field of the Invention] This invention relates to a guided missile that detects infrared rays or reflected waves generated from a target and captures and tracks the target. The aim is to maximize the performance of the guided aircraft's active proximity fuze, which detects reflected waves and generates a detonation pulse when the target passes close to the guided aircraft. (In other words, it aims to maximize the effectiveness of one bullet.)
Prior Art j First, a conventional guided missile of this type will be briefly explained. In Figure 1, 9M is a guided missile, and (1) is a guided missile M that is captured and
The target to be tracked (2j is infrared rays or reflected waves (hereinafter collectively referred to as signals) generated from the target (1).

(3) is an antenna that receives signals from target (1), (
4) extracts the target signal from the signal received by the antenna (3).The receiving device 1 (5) extracts the target signal from the output of the receiving device (4).
) The output is an elevation error signal generation circuit, (6) is an azimuth error signal generation circuit that extracts an azimuth error signal from the target signal of the output of the receiver (41), and (6) is an elevation error signal generation circuit (5). and the elevation error signal of the output of .

The antenna (3) is targeted by the azimuth error signal output from the azimuth error signal generation circuit (6).
), the antenna servo device (8) is an elevation error signal output from the elevation error signal generation circuit (5), and the azimuth error signal generation circuit (6).
Target the guided missile M using the output azimuth error signal (1)
A steering device that steers in the direction of the meeting point with (91 is the target (1
111 is a carrier signal generation unit (9) that generates a carrier signal of transmission wave 0η to be irradiated to 1;
A transmission signal generation section that modulates the carrier signal output from the transmission signal to generate a transmission signal and simultaneously generates a demodulation reference signal, al) amplifies the transmission signal output from the transmission signal generation section μQ and outputs a high power transmission signal. amplifier.

O2 is a power divider that distributes the high power transmission signal output from the power amplifier αυ into two systems, and 03 is a power divider that supplies the high power transmission signal distributed by the power divider UZ to the upper side antenna (I4, The signal received by the upper side antenna aS is not supplied to the demodulator 3 and the second demodulator @, and the signal received by the upper side antenna aS is supplied to the first demodulator sv and the second demodulator (2).

a first circulator that does not supply power to the power divider α2;
The u field supplies the high power transmission signal distributed by the power divider 07J to the lower side antenna a[il, does not supply it to the first demodulator υ, the second demodulator 04), and The signal received by the side antenna Oe is sent to the first demodulator cn+.

The second circulator 09, which supplies the second demodulator (2) and does not supply the power to the power divider, irradiates the high power transmission signal supplied from the side facing the first circulator upwardly,
When the target (1) passes near the upper side, the upper side antenna receives the reflected wave from the target (1), and α0 emits the high power transmission signal supplied from the second circular circle in the downward direction. When the target (1) passes near the lower side, the lower side antenna receives the reflected wave 00 from the target (1), αη is the upper side antenna Q, and the lower side antenna 10 receives the target [1].
1, QI19 is the reflected wave from target (1), and α1 is a clutter-to-clutter distance detector that generates a ground gate signal that determines the ground-to-ground detection distance using the demodulated reference signal of the output of the transmitted signal generator ill. A gate signal setting section; 4, a target detection effective distance gate signal setting section that generates a target gate signal for determining a target detection distance based on the ground gate signal output from the inter-clutter distance detection gate signal setting section a9; C! υ
is received by the upper side antenna 05) and the lower side antenna Oe, and is supplied via the first circulator 31 and the second circulator U, and the inter-clutter distance detection gate signal setting unit (output of 19). a first demodulator that generates clutter demodulation No. 13 from the ground gate signal;
The first demodulator (2JJ) uses the output clutter demodulated signal to detect in advance that the distance to the ground approaches the arbitrarily set effective warhead distance and intrudes, and modulates the transmission signal depending on the degree of approach and the degree of intrusion. A modulation standard that controls the transmission signal generated by the transmission signal generation section QIj and the demodulation reference signal based on the control signal of the output of the warhead effective range clutter intrusion detection circuit 4 that generates the control signal that controls the control signal generation section (c). A transmission signal modulation control signal generation unit O4) that generates a signal receives the signal at the upper side antenna U51° and the lower side antenna field,
A second demodulator that generates a target demodulated signal from the signal supplied via the first circulator GJ and the second (1) length-curator circle and the target gate signal output from the target detection effective range gate signal setting section 1211. part, (c) is the second demodulation part &
The distance to the target (1) from the target demodulated signal of the output of 41 is
The target determines whether it is outside or inside the currently set target detection distance, and outputs a low level signal if it is outside, and a high/bell signal if it enters within the target detection distance. Detection effective range circle target intrusion detection circuit,
The CA outputs a high level signal when the output of the target intrusion detection circuit within the effective range for target detection [with] is a high level signal and the target signal output from the receiving device (4) disappears; otherwise, is a proximity fuze circuit that outputs a low level signal,
@ is the arrival tube that generates the 9 arrival detonation signal when guided missile M directly hits target (1).

(E) is a detonation signal generation circuit that generates a detonation signal when the proximity fuze circuit (4) outputs a no-level signal or when the first transmitting tube outputs an arrival detonation signal, @ is When meeting with target (1), the ammunition is detonated by the detonation signal output from the detonation signal generation circuit (2) and causes great damage to target (1). ■ supplies power to each component of guided missile M. The power source 61) is a propulsion device that provides thrust to the guided missile M.

The conventional guided missile M is configured as described above, guided toward the meeting point with the target (1), and finally the guided missile M reaches the target (I).
When it hits directly or enters within the target detection range, it generates a detonation signal, detonates the ammunition, causes great damage to target (1), and shoots down target (1). However, at very low altitudes where clutter enters the warhead's effective range, the target gate signal is controlled based on the error in the distance between the clutters, and the target detection range is varied within the warhead's effective range, allowing the clutter to detonate. This prevents the signal from being generated.

However, when the distance between clutters enters within the effective range of nine warheads, the effective target detection range becomes short.

Therefore, there was a drawback that the effective target detection range was rapidly narrowed. (Goal of guided missile M (1) Decrease in shooting ability, IVF In recent years, there has been a strong desire to improve the ability of guided missile M to shoot down low-altitude targets, and the above drawbacks have become an important issue.) Summary] This invention was made with the aim of improving such drawbacks, and it is possible to control the aircraft so that the guided missile M does not reach a distance from the ground within a certain distance (warhead effective distance) at extremely low altitudes affected by clutter. By.

Guided missile M that prevents the effective target detection range for low-altitude targets from rapidly narrowing and improves the ability to shoot down targets by +11
This is what we propose.

[Embodiment J of the invention FIG. 2 is a diagram showing an embodiment of the present invention.

(1) to Gυ are the same as in Fig. 1, and (34 to (39) are devices newly added to Fig. 1. C (3 is the output of the transmission signal modulation control signal generator (c) A comparison circuit that outputs a signal corresponding to the exceeded level when the signal level of the modulation reference signal or a predetermined level is exceeded, and outputs a low level signal when it does not exceed the level, and the eel meets the target (1). It detects whether the flight attitude of the guided missile M' that is about to fly in the direction of a point is downward or upward relative to the ground, and if it is pointing downward, it outputs an level signal and moves upward. If the output of the attitude/angle detection circuit is a high level signal, the comparison detection circuit (32) outputs a bias control signal according to the output of the attitude/angle detection circuit. When the output of the attitude angle detection circuit is a low level signal, the bias control G4 generator outputs a low level signal, and Iso is the bias control signal generator. For level signals.

The elevation error signal output from the elevation error signal generation circuit (5) is directly supplied to the steering device (81), and the bias control signal output from the bias control signal generation section (2) is not a low level signal. is an elevation error bias signal generation circuit that supplies a signal obtained by adding an elevation error bias according to a bias control signal to the output of the elevation error signal generation circuit (5) to the steering device.

In the first guided missile M' as described above, the guided missile M' is controlled so as not to intrude within a certain distance (effective warhead distance) from the ground. Therefore, a sudden drop in F of the target detection effective range is prevented.

Effect of invention J This invention is based on J3'' as explained above.

Reduces the reduction in target detection effective range for low-altitude targets and targets 11 low-altitude targets. It has the effect of improving the ability of guided bullets to target targets.

[Brief explanation of drawings]

Figure 1 is a block diagram of a conventional guided missile without showing it. FIG. 2 is a block diagram showing an embodiment of this system. In the figure, (1) is the target and (2) is the signal from the target. (3) is the antenna, 41st is the receiving device, (5) is the elevation error signal generation circuit, (6) is the azimuth error signal generation circuit, (force is the antenna servo device, and (8) is the steering device. (9) is a carrier signal generator, 11 is a transmitting signal generator, ao is a power amplifier, G2 is a power divider, 03 is a first circulator, θ is a second circulator, αQ is an upper side antenna, G61 is F Side antenna, 0η is the transmitted wave, G8 is the reflected wave, ag is the inter-clutter distance detection gate signal setting section, ■ is the target detection effective range gate signal setting section, Qυ is the first demodulation section, @ is the clutter within the warhead effective range Intrusion detection circuit, c!3 is a transmission signal modulation control signal generation unit,
C241 is a second demodulator, CA is a target detection effective range circle target intrusion detection circuit, and (C) is a proximity fuze circuit. +271 is the receiving tube, ■ is the detonation signal generation circuit, and the trunk is the ammunition. Circle is the power supply, Ql) is the propulsion device, 03 is the comparison circuit, (to)
041 is an attitude angle detection circuit, 041 is a bias control signal generator,
The elevation error bias signal generating circuit 1M is a guided bullet. Note that the same reference numerals in each figure indicate the same or corresponding parts. Agent Masuo Oiwa

Claims (1)

[Claims] An antenna that receives infrared rays or reflected waves generated from a target, a receiving device that extracts a target signal from a signal received by the antenna, and an error signal f that extracts a target signal from the target signal. an azimuth error signal generation circuit that extracts an azimuth error signal from a target signal, and an antenna servo device that drives the antenna in the target direction. A steering device that steers the guided missile in the direction of the meeting point with the target, a carrier signal generator that generates a carrier signal of the transmission wave to be irradiated to the target in order to obtain the timing when the guided missile passes near the target, and a gear rear signal. A transmitting signal generating section which modulates and generates a transmitting ID signal and simultaneously generates a demodulated reference signal. A power amplifier that amplifies the transmitted signal and outputs a high-power transmission {g signal. A power divider that distributes the high power transmission signal to the upper side antenna and the lower side antenna, and supplies the distributed high power transmission signal to all the antennas,
First demodulator. The signal received by the upper antenna is not supplied to the second demodulator. First demodulator. A first zalculator that supplies the second demodulation section and does not supply it to the power divider, and a first zalculator that supplies the distributed high power transmission signal to the lower side antenna and The signal received by the lower side antenna is sent to the first demodulator. A second zalculator that supplies the signal to the second demodulator but does not supply the power to the power divider and irradiates the supplied high-power transmission signal in the upper semicircular direction, and when the target passes near the upper τ11j, the signal from the target is The upper side antenna receives the reflected waves, and the F side antenna receives the reflected waves from the target when the 7L mark passes near the lower side by emitting the supplied high-power transmission signal in the lower semicircular direction. , a Kurasota distance detection gate signal setting unit that generates a ground gate signal that determines the ground detection distance based on the demodulated reference signal, and a target detection effective distance that generates a target game 1 signal that determines the target detection distance from the ground gate signal. Gate signal setting section. A first demodulation unit generates a clutter demodulation signal from the reflected wave and the ground gate signal, and detects in advance that the distance between the ground and the ground is approaching and intruding within the effective range of two warheads from the clutter demodulation signal, and detects the degree of approach and A modulation reference signal that controls the transmission signal generator by the output control signals of the warhead effective range clutter intrusion detection circuit and the nine warhead effective range clutter intrusion detection circuits that generate control signals to control the transmission signal modulation signal depending on the degree of intrusion. a transmission signal modulation signal generator that generates a transmission signal; A second demodulator generates a target demodulated signal from the reflected wave and the target gate signal, and determines from the target demodulated signal whether the distance to the target is outside or inside the target detection distance set at that time. , the output of the target detection effective distance circle target intrusion detection circuit outputs a low level signal when it is outside and a high level signal when it enters within the target detection distance, and the output of the target detection effective distance circle target intrusion detection circuit outputs a high level signal. At the signal
- Proximity fuze circuit that outputs a high level signal when the target signal disappears, and outputs a low level signal otherwise, and generates the landing detonation signal when the guided missile hits the target directly. a detonation signal generation circuit that generates a detonation signal for detonating the ammunition when the arrival tube and the proximity fuze circuit output a high level signal or when an arrival detonation signal is input;
Ammunition that detonates upon meeting the target and causes great damage to the target. In a guidance system consisting of a power source that supplies power to each component and a propulsion device that provides thrust, the modulation reference signal level exceeds a predetermined level. A comparison circuit that outputs a signal according to the level exceeded, and outputs a low level signal if it does not exceed the level, and a comparison circuit that outputs a low level signal depending on the level exceeded, and a comparison circuit that determines whether the flying attitude of the guided missile that is flying toward the meeting point with the target is downward or upward relative to the ground. There is an attitude angle detection circuit that detects whether the camera is facing downwards and outputs a high level signal if it is facing upwards, and outputs a low level signal if it is facing upwards, and the attitude angle detection circuit outputs high level signals. In the case of a level signal, a bias control signal generating section generates a bias control signal according to the output of the comparison detection circuit, and in the case of a low level signal, outputs a low level signal, and the bias control signal is a low level signal J) A If the elevation error signal output from the signal generation circuit is supplied to the steering system as it is, and if it is not a low level signal, the elevation error bias according to the bias control signal is and an elevation error bias signal generation circuit that supplies a signal obtained by adding the above to the elevation error signal to a steering device.