Method and device for improving single-pulse angle measuring precision of search radar

Abstract

The invention provides a method for improving the single-pulse angle measuring precision of search radar. The method comprises angle error pre-processing and angle error correction. The angle error pre-processing is to analyze test data of a single-pulse antenna directional diagram of the search radar, and calculate angle error data by adopting data fitting and interpolation methods according to signal difference over sum when parameters are different to form an angle error data table; and the angle error correction is to burn the angle error data table into a memory, then solve difference over sum, search the table according to the difference over sum and relevant parameters to obtain an angle error value and correct the measured target angle error in real time. The method effectively improves the angle measuring precision of the traditional single-pulse angle measuring method, particularly the angle measuring precision when the target deviates from the center of antenna beams greatly. The method is suitable for single-pulse angle measuring mechanism radar, particularly the search radar with low data rate; and the corrected angle error data can be directional or pitched.

Description

technical field [0001] The invention relates to the field of search radar signal processing, in particular to a method and device for improving the accuracy of single pulse angle measurement of search radar. Background technique [0002] In modern warfare, the search radar plays an important role in the weapon system: in some missile weapon systems, the search radar provides target indication for the tracking radar. When the tracking radar fails, the target indication data of the search radar is required to be directly available. Command the fire unit to operate; in some missile weapon systems, the target indication data of the search radar can be directly used to guide the missile launch, and even realize the guidance function. In either case, high requirements are placed on the measurement accuracy of the search radar, especially the angle measurement accuracy. [0003] The single-pulse angle measurement system can obtain better angle measurement accuracy, and has become ...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a method and device for improving the accuracy of single-pulse angle measurement of search radar, so as to solve the problem that the accuracy of single-pulse angle measurement of existing search radar is easy to deteriorate, especially when the target deviates from the center of the beam. worsening problems

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