Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (11): 3338-3345.doi: 10.12305/j.issn.1001-506X.2022.11.07

• Electronic Technology • Previous Articles     Next Articles

Sea-surface weak target detection based on multi-feature information fusion

Chunling XUE1,*, Fei CAO1, Qing SUN2, Jianqiang QIN1, Xiaowei FENG1   

  1. 1. Nuclear Engineering College, Rocket Force University of Engineering, Xi'an 710025, China
    2. School of Mathematics and Information Science, Baoji University of Arts and Sciences, Baoji 721013, China
  • Received:2021-07-21 Online:2022-10-26 Published:2022-10-29
  • Contact: Chunling XUE

Abstract:

To improve the performance of radar weak target detection in sea clutter, a target detection method based on multi-feature information fusion is proposed. Firstly, on the basis of the analysis of time-domain returned signal, the pulse and amplitude deviation rate is defined to characterize the sharpness of discrete returned signal. Secondly, the multi-feature information fusion tensor is constructed by combining the frequency peak to average ratio and local grade of fractality of the returned signal. Thirdly, the support vectors machine (SVM) classifier is trained by cross validation, and the target is detected according to the classifier. Finally, by a series of experimental analysis of the measured sea clutter data, the parameters of the proposed scheme are optimized. Furthermore, the results show that the proposed method has better robustness compared with the existing traditional methods.

Key words: target detection, sea clutter, information fusion, support vector machine (SVM)

CLC Number: 

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