A Radar Radiator Individual Identification System Based on Radar Pulse Sequence

Abstract

The invention discloses a radar radiation source individual identification system based on radar pulse sequence, which includes radar individual pulse sequence database, data preprocessing module, different individual weight calculation module, weighted limit gradient lifting radar individual modeling module, radar individual identification Module, radar individual identification final result calculation module. The present invention realizes the individual recognition of radar radiation sources based on radar pulse sequences. In addition to using the original pulse sequence as input in the radar radiation source individual recognition system based on radar pulse sequences, wavelet decomposition is also performed on the original radar pulse sequences to obtain multi-scale inputs. More distinguishable subtle features, using a weighted integrated learning algorithm to establish a radar emitter individual recognition model, can overcome the problem of unbalanced number of radar individual samples in the database, and at the same time have strong feature extraction capabilities, high accuracy, and fast modeling speed Etc.

Description

technical field [0001] The invention relates to the field of radar radiation source identification, in particular to a radar radiation source individual identification system based on radar pulse sequences. Background technique [0002] Due to the discrete components of the transmitter and the inconsistency of the manufacturing process of the individual radar radiation source, there will be electronic component tolerances in all components of the wireless transmitter such as the printed circuit board wiring, the internal component wiring of the integrated circuit, and the antenna. , so as to form radio frequency characteristics. Different individuals will always have some inconsistencies. These inconsistencies will eventually be reflected in the signals emitted by the radar. By extracting the subtle features in the signals, different radar individuals can be distinguished. Complex electronic systems and complex electromagnetic systems The objective existence of the environme...

AI Technical Summary

Problems solved by technology

[0004] In view of the fact that there are few researches on the identification of individual radar emitters, and the current individual methods of radar emitters have problems such as insufficient ability to extract subtle features, need for ideal assumptions, and low recognition accuracy, the purpose of the present invention is to provide a feature The radar emitter individual recognition system with strong extraction ability, high accuracy, sample balance ability and strong robustness realizes the individual recognition of radar emitters based on radar pulse sequence. In addition to using the original pulse sequence as input, the original radar pulse The sequence is decomposed by wavelet to obtain multi-scale input, and more distinguishable subtle features are mined, and a weighted integrated learning algorithm is used to establish a radar emitter individual recognition model, which can overcome the problem of unbalanced number of radar individual samples in the database, and has feature extraction. Strong ability, high accuracy, fast modeling speed, etc.

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