DocumentCode :
2586351
Title :
A novel method for LPI radar signal sorting in multipath channel
Author :
Jiang, Li ; Li, Lin ; Zhao, Guo-Qing
Author_Institution :
Sch. of Electron. Eng., Xidian Univ., Xi´´an, China
fYear :
2012
fDate :
28-31 May 2012
Firstpage :
1100
Lastpage :
1104
Abstract :
Signal sorting of low probability of interception (LPI) radar signals is extremely important in electronic support measurement (ESM) systems. Usually, there are multipath interferences in the intercepted signals, which result in the decrease of signal sorting performance of conventional methods. In this paper, we present a local ambiguity function (AF)-based signal sorting method for multipath fading environments. The singular vectors of the local AF are extracted as the signal feature which is robustness to the channel effects. Then, a multiclass classifier based on support vector machine (SVM) determines types of the received signals. Simulation results show that the proposed method has a high accurate rate for the recognition of twelve types of LPI radar signals in multipath channel, even at low signal to noise ratio (SNR).
Keywords :
fading channels; interference (signal); multipath channels; radar signal processing; LPI radar signal sorting; LPI radar signals; ambiguity function-based signal sorting method; channel effects; electronic support measurement systems; intercepted signals; multiclass classifier; multipath channel; multipath fading environments; multipath interferences; signal to noise ratio; support vector machine; Frequency modulation; Multipath channels; Phase shift keying; Radar; Sorting; Support vector machines;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics (ISIE), 2012 IEEE International Symposium on
Conference_Location :
Hangzhou
ISSN :
2163-5137
Print_ISBN :
978-1-4673-0159-6
Electronic_ISBN :
2163-5137
Type :
conf
DOI :
10.1109/ISIE.2012.6237242
Filename :
6237242
Link To Document :
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