2-D DOA Estimation of Coherent Wideband FM Signals Based on STFT
摘要
Wideband FM signal occupies a wide band in frequency domain and has a time-varying direction vector. Therefore it is difficult to estimate its DOA, particularly the method to estimate 2-D DOA of coherent wideband FM signals has not been reported. This paper constructs a novel time-frequency equation based on STFT and the time-frequency distribution of wideband FM signals. The structure of rectangular or array and the SVD based on the stack of rectangular sub-arrays are also exploited to estimate 2-D DOA of coherent wideband FM signals. Theoretical predictions and simulation results indicate the efficacy of the proposed algorithm.
引用本文（GB/T 7714）
Liping Li, Hang Ke-ji, Chen Tian-qi. 2-D DOA Estimation of Coherent Wideband FM Signals Based on STFT[J]. 未知来源, 2005.
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