Radar sorting system control method and radar sorting system

Abstract

The invention discloses a radar sorting system control method and a radar sorting system, and the method comprises the steps: enabling pulse description words to be matched with radiation source description words in a background library, carrying out the sorting result verification of the pulse description words with the matching result through employing the corresponding radiation source description words, and if the verification succeeds, taking the corresponding radiation source description word as a first sorting result, otherwise, combining the pulse description word and other pulse description words without the matching result, performing sorting, taking the obtained corresponding radiation source description word as a second sorting result, and combining the first sorting result and the second sorting result to obtain a radiation source description word data stream; matching and updating the radiation description words in the background library according to the radiation source description word data stream, calculating confidence coefficients of all the radiation description words, outputting the radiation source description words of which the confidence coefficients are higher than an output threshold value, and deleting the radiation source description words of which the confidence coefficients are lower than a deletion threshold value. According to the invention, calculation resource consumption is reduced, and the reporting accuracy of the sorting result is improved.

Description

technical field [0001] The invention relates to the field of radar signal processing, in particular to a radar sorting system control method and a radar sorting system. Background technique [0002] The input of the radar reconnaissance system is a dense pulse stream formed by random overlapping of many radar radiation pulses, and the output signal after front-end processing may still be a dense, overlapping pulse stream. The first signal processing function that the radar reconnaissance system should have is to automatically sort randomly overlapping signals, that is, to have the ability to de-interleave. Because only by separating the randomly overlapping pulse streams into separate pulse trains for each radar, on this basis, the signal parameters of each pulse stream can be analyzed, and then the type of radiation source can be identified and its threat level can be judged. [0003] It can be seen that signal sorting is the basis and premise of radar signal analysis and ...

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Problems solved by technology

[0007] 3. The working frequency bands of radiation sources are constantly increasing, and the working frequency bands of radiation sources in different frequency bands overlap. Based on the above reasons, the radiation sources are crowded in the airspace and parameter domains, overlap in the time domain, and the probability of arriving signals increases at the same time. For traditional receivers system challenges

However, it needs to directly sort all the pulse description words of the input signal to obtain the corresponding radiation source description words, which takes up a lot of computing resources, and stores the unmatched signals in the unknown signal database for future database expansion, which cannot be real-time Update the database, resulting in low recognition efficiency

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