Title
<p>A novel segmentation approach for work mode boundary detection in MFR pulse sequence</p>
Abstract
Understanding and analysis of multi-function radar (MFR) work modes play a key role in radar countermeasures. Many methods have been proposed for recognizing the work modes. However, segmentation of pulse sequence is prior to the mode recognition as the mode transition boundaries are not known in advance for the whole sequence. To solve the boundary detection problem, an unsupervised segmentation method based on recurrence plot (RP) and singular value decomposition (SVD) is proposed in this paper. The method utilizes RP to reveal the characteristic change of the pulse sequence, and makes a quantitative analysis through SVD to extract the main information of work mode. Then, discrepancy measure is employed to detect the boundary, thus determining whether or not the mode transition has occurred. The proposed method can recognize the transition boundaries at different granularity levels. Experimental results show that our method achieves better performance than existing segmentation methods and is robust to non-ideal conditions. (C)& nbsp;2022 Elsevier Inc. All rights reserved.
Year
DOI
Venue
2022
10.1016/j.dsp.2022.103462
DIGITAL SIGNAL PROCESSING
Keywords
DocType
Volume
Work mode, Boundary detection, Sequence segmentation, Recurrence plot, Singular value decomposition
Journal
126
ISSN
Citations 
PageRank 
1051-2004
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Kun Chi100.34
Jihong Shen200.34
Jun Guo373.24
Liyan Wang400.34
Wang Sheng585.80