Radiation source signal clustering sorting method based on radar pulse aliasing degree judgment

Abstract

The invention discloses a radiation source signal clustering sorting method based on radar pulse aliasing degree judgment. Firstly, a data acquisition platform is built, different kinds of radar signals are selected to form to-be-sorted data, and different pulse signal data in a PDW (pulse description word) of the to-be-sorted data are acquired; then, a radar signal pulse aliasing degree judgmentrule is formulated to judge the aliasing degree of the pulse signal data, and the pulse signal data with the aliasing degree lower than a set threshold are selected as data to be clustered; and finally, based on an RF-PW-characterized density clustering algorithm, clustering sorting is carried out on the to-be-clustered data to complete clustering sorting of the to-be-sorted data. According to themethod, the signals of various aliasing states are subjected to aliasing state determination, the low-aliasing-state or non-aliased pulse signals are selected for big data clustering sorting, and then big data clustering sorting is carried out on the remaining parts, so that the sorting and recognition success rate can be increased, and meanwhile, the sorting time consumption can be reduced.

Description

technical field [0001] The invention belongs to the technical field of radiation source sorting, and in particular relates to the design of a radiation source signal clustering and sorting method based on radar pulse aliasing degree determination. Background technique [0002] With the increasingly fierce electronic countermeasures and the increasingly complex signal environment, it has become an inevitable trend to quickly and accurately sort radar signals, especially unknown radar signals. As we all know, modern warfare is highly information-based. In modern battlefields where land, sea, air, space, and electricity are integrated, electronic warfare and other technical means are used to collect, utilize, and control war information, and then have the dominance of war information. become the key to the success or failure of the war. This means that in modern electronic warfare, electronic countermeasure technology, while serving as an advanced information weapon, can inhib...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the signal environment is becoming more and more complex, and the radar signal pulse has a sequence, so that the radar signal pulse has multiple aliasing modes, and the aliasing of the radar radiation source pulse will seriously affect the sorting success of the clustering algorithm. In order to improve the success rate of radiation source signal clustering and sorting

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