Title :
DOA Estimation of Coherent NLFM Signals
Author :
Gao, Chunxia ; Zhang, Tianqi ; Tan, Fangqing ; Wang, Chao
Author_Institution :
Chongqing Key Lab. of Signal & Inf. Process., Chongqing Univ. of Posts & Telecommun., Chongqing, China
Abstract :
As the prevalence of broadband coherent sources, a novel algorithm for the direction of arrival (DOA) estimation of coherent signals based on DPT and virtual array is introduced. And one of the algorithms is to be done a comparison, analysis and improvement. It can settle the problem of not finding coherent signals in routine algorithm. This approach can estimate accurately and do not decrease effective array aperture and improve the utilization of array. Simulation results verify the correctness and efficiency of the new algorithm.
Keywords :
array signal processing; direction-of-arrival estimation; DPT; broadband coherent sources; coherent NLFM signals; direction of arrival estimation; virtual array; Arrays; Broadband communication; Direction of arrival estimation; Estimation; Multiple signal classification; Polynomials; Signal processing algorithms; Direction of arrival estimation; Discrete Polynomial Phase Transform; Virtual array transformation; correlation wideband NLFM;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP), 2011 Seventh International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4577-1397-2
DOI :
10.1109/IIHMSP.2011.14
