JPS6057200A - Fire-control system - 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 fire control device for controlling a gun firing at a target.

In fire control systems that control guns, there are target tracking errors in the tracking equipment that tracks the target to be fired at, and calculation errors in the firing calculation equipment that calculates firing specifications.

It is common for errors in the bullet impact recorded as a result of shooting to occur due to signal transmission errors between each device.

In order to improve shooting performance by reducing bullet impact errors caused by these factors as much as possible, conventional methods used some method to observe the bullet impact point during live ammunition firing, and the results were used to determine the firing speed that was transmitted to the gun. A method was used in which specifications were corrected manually or automatically. but.

This method involves shooting real bullets at real targets.

Since it is impossible to calculate the impact error value until the results are observed, even if an extremely large error occurs in the firing specifications, no action can be taken before firing. In addition, bullets fired with such errors in firing specifications cannot be expected to hit the target and are wasted, which also poses a problem in terms of cost (2).

The present invention was made to eliminate such problems in the conventional fire control device, and the present invention will be explained in detail below in comparison with the conventional fire control device using the drawings.

Figure 1 shows the configuration of a conventional fire control system, where C1) shows a radar device as a typical example of target tracking equipment, and (la) shows an antenna.

(1b) is a transmission/reception switching circuit, (lc) is a transmitter,
The transmission power generated by the transmitter (Ic) is transferred to the transmission/reception switch (11
)) and is radiated into the air from the antenna (1a).

The transmitted power radiated into the air forms a radio beam (101).

A target (102) is irradiated. The transmitted power irradiated to the target (102) is reflected and received by the antenna (1a) as a target reflected wave, and then passes through the transmission/reception switching circuit (lb).

It is sent to the receiver (1d). (1e) is a radar signal processing circuit that receives the target video signal from the receiver (1d), removes the noise received at the same time when receiving the target reflected wave, and corrects the strength of one reflected wave. do. (1f
) is a target tracking circuit which receives the processed target video signal from the radar signal processing (3) processing circuit (1e) so that the target (102) is aligned with the center line (10) of the antenna (, la).
3), an error signal is generated depending on the amount of movement.

This error signal is sent to the servo amplifier (1g). The servo amplifier (1g) amplifies the error signal and the antenna (1a)
By driving a drive mechanism (1h) that is mechanically connected to the antenna (1h) by a gear or the like, the antenna (1a) can always be directed toward the target (1a) when the target (1a) moves.

(11) is a display device, and radar signal processing circuit (1e)
Display the processed target video signal. (1i) is a target/bullet identification circuit, and the radar equipment r1) is the target (10
2) is a circuit that identifies a bullet (104) passing through a radio beam (101) from a target (102) while tracking the target (102);
The identified results are a target signal (2) and a bullet signal (3), respectively. (4) is a shooting calculation device,
Upon receiving the target signal (2) from the device (1), the target signal (102
) is calculated to predict the future position (target position after bullet flight time T seconds) and determines shooting specifications to control the gun.

The gun (not shown in the figure) receives the shooting specifications, performs a swivel and elevation movement, and fires bullets (4) and (1,04) according to predetermined instructions. Bullet fired (104)
flies along a predetermined trajectory toward the future location of the target (102).

Due to errors caused by the various factors already mentioned, one bullet (1
04) deviates from the target future position and does not hit the target (102). However, after T seconds after the bullet is fired from the gun, the target (
Since the bullet 004) passes near the antenna (102), the bullet reflected signal from the radio beam (101) is transmitted to the antenna (1a).
The bullet signal (3) can be received by the target/bullet identification circuit (1j) via the transmission/reception switching circuit (Ib), the receiver (1d), and the radar signal processing circuit (1e).

(5) is a bullet observation correction device, (5a) is a bullet signal processing circuit, (sb) is a bullet display, and (5c) is a bullet hit error correction circuit. The target signal (2) and the bullet signal (3) are input to the impact signal processing circuit (5a), and the spatial distance (impact error) between the target position and the bullet position is determined and the bullet impact indicator (5b) ). The bullet impact error correction circuit (5c) is a circuit for correcting the bullet impact error detected as described above, and as a result of the operator observing the bullet impact indicator (5b) 7 manually or A bullet impact error correction signal (6) is automatically generated (5) based on the signal from the signal processing circuit (5a) and sent to the shooting calculation device (4). As a result, the prediction calculation of the future position in the shooting calculation device (4) is corrected.

FIG. 2 shows the configuration of the fire control device according to the present invention, and (7) is a pseudo target generation circuit, which is a circuit for generating a pseudo target that spatially moves along a predetermined path. By inputting the pseudo target (8) to the antenna (1a), the radar device 11) operates as if it were for a real target, and as a result, the target signal +21 of the pseudo target is transmitted to the shooting calculation device ( 4), a predictive calculation is performed in the shooting calculation device (4), and the future position of the pseudo target after one bullet flight time T seconds is determined.

Therefore, as mentioned above, if there is an error in each part of the fire control system, the error will be included in the future position determined as described above.On the other hand, the pseudo target generation circuit (7) By inputting the bullet flight time T seconds (9) determined by the calculation device (4), the correct position of the pseudo target after T seconds can be determined.

The correct pseudo target position signal Ill after T seconds from the pseudo target generation circuit (7) or (6) generated as described above, and the future position signal of the pseudo target containing an error from the shooting calculation device (4). By inputting α1) into the impact signal processing circuit (5a), a virtual impact error, which is a spatial difference between these signals, can be calculated, and the actual It can be displayed on the bullet impact indicator 9 (5h) in the same way as the impact error when firing a bullet. As a result, a landing error correction signal (6) is generated manually or automatically through the bulleting error correction circuit (5C) and sent to the body calculation device (4). As a result, the prediction calculation of the future position in the shooting calculation device (4) is corrected.

Since this invention is as above 9, there is no need to use an actual target to fire an actual bullet and observe the result to correct for impact error, unlike conventional fire control systems. ,
Landing errors caused by various factors can be corrected with an extremely simple method.

In addition, in Fig. 2 (1 bullet impact signal processing circuit (5a)
The correct pseudo target position signal 101 after T seconds and the pseudo target future position signals (7) and (11) containing errors are input to the switch (12a) and the switch (11), respectively.
Although it goes through the B side of 12b), by turning these switches to the A side, it is also possible to perform the one-shot impact error correction operation using the real target as in the past without using the pseudo target. .

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional fire control system, and FIG. 2 is a block diagram of a fire control system according to the present invention. fil is a radar device as a target tracking device, C2) is a target signal, (3) is a bullet signal, (4) is a shooting calculation device, (
5) is a bullet observation correction device, (6) is a bullet impact error correction device,
(7) is a pseudo target generation circuit, (8) is a pseudo target, (9)
is the bullet flight time, flO) is the correct pseudo target position signal after the bullet flight time has elapsed, +Ill is the future position signal of the pseudo target containing an error, (121 is the case of the actual target when correcting the impact error, Changeover switch for pseudo target, (101) is radio beam, (102) is target,
(103) is the antenna center line. (104) is a bullet. Note that in FIG. 1, the same or corresponding parts are designated by the same reference numerals. (8)

Claims (1)

[Scope of Claims] A target tracking device that tracks a target, a shooting calculation device that calculates the future position lit of the target tracked by the target tracking device and determines shooting specifications, and fires based on the shooting specifications. In a fire control system consisting of a bullet impact observation and correction device that measures the difference between the position of the bullet and the position of the tracked target and corrects the impact error using this difference, the A pseudo target generation circuit capable of generating a target is provided, and the pseudo target generated by the pseudo target generation circuit is generated. The future position of the tracked pseudo target is tracked by the target tracking device, and the future position of the tracked pseudo target is determined by the shooting calculation device, and the difference between this future position and the pseudo target position delayed by the bullet flight time obtained from the pseudo target generation circuit is calculated. A fire control device characterized in that the fire control device is configured to perform observation using a landing observation correction device and correct the fire calculation device based on the observation. (1)