JPH02168186A - Radar apparatus - Google Patents

Abstract

PURPOSE:To perform catching operation due to the indication of a target without putting attention to the motion capacity of the target and to enhance catching probability at the time of dealing-with of the target moving at a high speed by adding a memory device, a correlation processor, an estimation device and an adder to a radar apparatus. CONSTITUTION:A memory device 12 stores the angle of a searching radar antenna and the target data detected by moving target detectors 2, 4 at every target detection distance. A correlation processor 13 performs the correlation processing of the moving target data stored in the memory device 12 and the moving target data indicated by a target indicator 10 and an estimation device 14 estimates the future position of a target on the basis of the data processed by the processor 13. An adder 15 adds the output of the estimation device 14 to the target catching pattern signal outputted from a calculator 9. By this constitution, the moving target is discovered on a display part 5 and, by indicating the target, catching operation can be performed so as to follow the motion of the target.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a radar device that searches for a target in space.

[Conventional technology]

Figure 2 shows an example of the configuration of a conventional radar device.
In the figure, (11 is a search antenna unit that transmits or receives radio waves in space, (2) is an angle detector for detecting the angle of the search antenna unit, and (3) is the above tl). (4) is a moving target detector for detecting a moving target from the received signal processed in (3);
5) is a display unit that displays the moving target detected in (4) above according to the search radar antenna angle; 00) is a display unit that displays the moving target detected in (4) above;
5) is the target indicator that indicates the target displayed, (9) is the target position indicated in 001 above and the following of (6).
- A computer that calculates the target indication direction from the pointing angle of the guanotenah part and generates the target acquisition pattern signal, (8) is the above (
(9) is a servo amplifier for driving a tracking radar antenna based on the calculation result; (6) is a tracking radar antenna section for directing in the direction specified by the target in 00) and radiating radio waves into space; (7) is an angle detector for detecting the angle in (6) above.

[Problem to be solved by the invention]

Conventional marking devices are configured in this way, so when a moving target is discovered on the display and the target is designated,
The follower antenna unit is oriented in the target direction and performs a target acquisition operation in accordance with a fixed acquisition pattern in the specified direction. At this time, if the moving target is moving at a high speed for which the target is specified, it is necessary to specify the target in advance in the future direction of the moving target. However, there was a problem in that the target instruction had to be given again.

This invention was made with the aim of improving this problem, and is designed to automatically control the acquisition pattern of the tracking radar annotenna in accordance with the movement performance of the target when shooting to indicate a target. .

[Means to solve the problem]

The radar device according to the present invention stores the moving target detected by the moving target detection unit and the search radar antenna angle data, and performs correlation processing with the designated angle specified by the target on the display unit, This allows acquisition by tracking radar to be automatically controlled regardless of the target's motion performance.

[For production]

In this invention, by controlling the target acquisition operation of the tracking radar based on the target position to be designated and the moving target data detected by the radar device, the target designation action is performed without being conscious of the target's motion performance. It is possible,
The ability to acquire targets eliminates the possibility of not being able to capture high-speed moving targets.

〔Example〕

FIG. 1 shows an embodiment of the present invention. In FIG. 11, (1) to 00) are the same as the conventional radar device described above. , tI21 is the search antenna angle and movement! 1ilI A storage device that stores target data detected by the target detector for each target detection distance, 1 and 3) are correlations between the moving target data stored in the storage device and the target data specified by the target indicator. A correlation processor performs processing; (4) is a predictor that predicts the future position of the target from the data processed by the correlation processor; t15 represents the output of the predictor and a target acquisition pattern signal output from the computer; This is an adder that adds . With this configuration, by discovering a moving target on the display and indicating the target, it is possible to perform the capturing action to follow the slow movement of the target.

〔Effect of the invention〕

As explained above, this invention includes a memory storage, a correlation process @E old 1, and a prediction S 1 as a part of the radar device.
By adding the adder 141 and the adder (11), it is possible to perform a capturing operation based on a target instruction without being aware of the target's motion performance, and it is effective to improve the probability of capturing when dealing with a high-speed moving target.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a radar device according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional radar device. In the figure, (1) is the search radar antenna, (2) is the angle detector, (3) is the radar receiver, (4) is the moving target detector, (5) is the display, and (6) is the tracking radar antenna. (7) is an angle detector, (8) is a servo amplifier, (9
) is a calculator, (101 is an angle detector, Il+ is a signal processor, decoy is a memory, f131 is a correlation processor, iMl is a predictor, and (1j1 is an adder.) Note that the same reference numerals in each figure indicates the same or a corresponding portion. Agent Masuo Oiwa

Claims (1)

[Claims] A radar device that detects a target in space by transmitting radio waves in space and processing the received signal, comprising a search radar antenna section for emitting or receiving radio waves in space, a tracking radar antenna section, and the antenna section. an angle detector that detects a directivity angle of the antenna, a radar receiver that processes the received target signal, a moving target detector that processes the signal received by the radar receiver and detects a moving target, and a moving target detector. a memory for storing the output signal of the angle detector and the output of the angle detector; a display for displaying the radar signal based on the output of the angle detector and the output of the moving target detector; and specifying the target position displayed on the display. a target indicator to
A computer that calculates the antenna acquisition pattern angle using the target indicator output and the output of the angle detector, a correlation processor that performs correlation processing from the output of the storage device and the computer output signal, and predictive calculation processing using the correlation processor output signal. A radar device comprising a predictor for adding the predictor output and the computer output signal, and a servo amplifier for driving the tracking radar antenna section from the output of the adder. The tracking radar antenna section is directed in the supported direction and a target acquisition operation is performed using the acquisition pattern.At the same time, the future position direction of the target is calculated from the moving target signal detected by the radar receiver, and the tracking radar antenna section acquires the target. A radar device characterized by automatically performing actions in accordance with a target movement.