Television error data delay time measurement system and method

A technology of delay time and measurement system, applied in the direction of TV, electrical components, image communication, etc., can solve problems such as failure to improve and improve the expected purpose, failure to meet the requirements of TV tracking performance, failure to screen, etc., to achieve accurate measurement, Improve performance, address lag effects

CN114374834APending Publication Date: 2022-04-19中国船舶重工集团公司第七二三研究所
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2022-04-19

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Abstract

The invention provides a television error data delay time measurement system and method, and the method comprises the steps: receiving a control instruction through a mechanical rotary table, carrying out the left-right movement in a television wave door range, and outputting a rotary table pointing angle; the television lens rotates along with the mechanical turntable to generate a television target image signal; and the television tracking processor extracts a position signal of the television target, generates a television error signal relative to the center of the image, and subtracts the moment corresponding to the maximum value of the television error signal from the moment when the rotary table is located at the rotating edge to obtain television error data delay time. The method can accurately measure the television error data delay time, facilitates reasonable selection of loop parameters, better solves the problem of television tracking lag, improves the television tracking performance, and is especially suitable for tracking a fast target.
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Description

technical field

[0001] The invention relates to television tracking technology, in particular to a method for measuring delay time of television error data. Background technique

[0002] Television is widely used in our daily life and also in military life. Its main function is to monitor the scene environment and track the target of interest, and provide timely and accurate target location information. The delay time of tracking error affects the performance and effect of target tracking. Accurate measurement of it is beneficial to identify factors affecting tracking performance, and to configure tracking loop parameters reasonably to improve target tracking performance. At present, the tracking performance parameters mainly rely on empirical debugging. When the delay time of TV error data cannot be determined, the parameters that affect the tracking performance cannot be identified, and the improvement and expected improvement cannot be achieved, and the system's requireme...

Examples

Embodiment

[0035] In order to verify the effectiveness of the scheme of the present invention, the following experiments were carried out.

[0036] The first step is to fasten the TV lens on the turntable.

[0037] The second step is to find an isolated target in the TV field of view, control the rotation of the turntable, and make the isolated target in the center of the TV field of view. At this time, the position angle code output by the turntable is 30°, and the TV error is zero.

[0038] The third step is to drive the turntable so that the turntable moves back and forth regularly, with a range of motion of 29.5° to 30.5° and a TV gate width of 1.6°.

[0039] In the fourth step, during the reciprocating motion of the turntable, the pointing angle of the turntable and the TV error signal are recorded in real time to form the pointing angle curve of the turntable and the TV error curve.

[0040] The fifth step is to obtain the time point when the turntable points at the left edge angl...