JPH0455697A - Antitank missile - Google Patents

Abstract

PURPOSE:To permit the selection of the optimum flying system corresponding to a distance to a target and the like by a method wherein the picture of the target is processed to compare it with an arbitrarily set threshold value of a first information while the optimum flying pattern is selected depending on whether the area of the target is larger or smaller than the threshold value. CONSTITUTION:At first, an input picture 101, including a target and the background, is changed into binary data by a binary circuit 1 by the sighting operation of the target by a shooter. Next, the area of the target in the input picture 101 is changed into the binary data by a feature extraction circuit 2. The area data is compared with a threshold value set in a threshold value setting circuit 3 through a comparing operation circuit 4. When the area data is larger than the threshold value, a flying signal 401 employing direct hit is sent to the control system of a fuselage while the flying signal 401 employing top attack is sent to the same system when the area data is smaller than the threshold value whereby the flying pattern of a missile is controlled. The threshold value, set in the threshold value setting circuit 3, can be set arbitrarily based on the operating condition from the outside of the system.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an anti-tank missile, and more particularly to an anti-tank missile that performs image signal processing to track a target.

[Conventional technology]

The conventional anti-tank missile flight method is as shown in Figure 2.
The flight pattern was fixed to either a direct hit, in which the 0 was fired almost horizontally and aimed at the side, or a top attack, in which the target was fired at a certain elevation angle and aimed at the top of the target 20, as shown in Figure 3.

[Problem to be solved by the invention]

The above-mentioned conventional anti-tank missiles have a fixed flight method, so in the case of a top attack method, it is difficult to guide a target at close range due to the aircraft's responsiveness, guidance darkness, etc. There are drawbacks.

In addition, the direct hit method has the disadvantage that it can only target the thick armor on the side of the target.

[Means to solve the problem]

The anti-tank missile of the present invention is an anti-tank missile that tracks a target based on an image signal related to the target including the background, and is a two-dimensional anti-tank missile that binarizes a human-powered image related to the target including the background.
a digitizing circuit; a feature extracting circuit that extracts the area of the target in the input image binarized by the binarizing circuit as a feature; The anti-tank missile of the present invention further comprises a comparison calculation circuit that outputs a flight signal that specifies a flight pattern that matches the feature amount, and a threshold setting circuit that externally sets the threshold value. The flight signal output from the comparison arithmetic circuit is configured to set a flight pattern suitable for each anti-tank missile depending on whether the area is larger or smaller than the threshold value. .

〔Example〕 Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention. In the embodiment shown in FIG. 1, the target input image 101 including the background is
A binarization circuit 1 for digitization and a binarized input image 101
．． Feature extraction circuit 2 that calculates the area as a feature from
, a threshold setting circuit 3 that externally sets a threshold value, and a flight signal 401 that compares the feature amount with the threshold value and sets a flight pattern for the anti-tank missile that matches the feature amount. The comparison calculation circuit 4 is configured to include an output comparison calculation circuit 4.

Next, the operation of the embodiment shown in FIG. 1 will be explained.

First, when a shooter aims at a target, the input image @101 including the target and background is binarized by the binarization circuit 1. Next, the feature extraction circuit 2 calculates the area of the target in the binarized input image 101. This area data and the threshold value set in the threshold setting circuit 3 are compared in the comparison calculation circuit 4, and when the area data is larger than the threshold value, a tie left hit is issued, and when it is smaller than the threshold value, a top attack is issued as a fly signal. The flight pattern is controlled by sending 401 to the control system of the aircraft. Note that the threshold value set in the threshold value setting circuit 3 can be arbitrarily set from the outside based on operating conditions.

〔Effect of the invention〕

As explained above, the present invention processes an image of a target, compares the information with an arbitrarily set threshold, and creates a flight pattern that is suitable depending on whether the area of the target is larger or smaller than the threshold. This has the effect of allowing you to select the optimal flight method according to the distance to the target, etc.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a conceptual diagram of a conventional direct hit method, and FIG. 3 is a conceptual diagram of a conventional top attack method. 1...Binarization circuit, 2...Special amount extractor circuit, 3...Threshold value setting circuit, 4...Comparison calculation circuit, 10...Anti-tank missile, 20...Target.

Claims (1)

[Claims] 1. An anti-tank missile that tracks a target based on an image signal regarding the target including a background, which comprises: a binarization circuit that binarizes an input image regarding the target including the background; A feature extraction circuit extracts the area of the target in the input image binarized by the conversion circuit as a feature, and compares the area with a predetermined threshold value to make the anti-tank missile fly in accordance with the feature. An anti-tank missile comprising: a comparison calculation circuit that outputs a flight signal specifying a pattern; and a threshold setting circuit that externally sets the threshold. 2. The flight signal outputted by the comparison calculation circuit sets a flight pattern suitable for each anti-tank missile depending on whether the area is larger or smaller than the threshold value. The anti-tank missile according to claim 1, characterized in that: