2-D DOA and polarization estimation of LFM signals with one electromagnetic vector sensor
Xin Zhou, Shi Yaowu, Wenhong Yang · 2008
Spatial Polarimetric WVD matrix is constructed using Wigner-Ville Distribution (WVD), a new algorithm is proposed for two-dimension (2-D) direction of arrival (DOA) and polarization of linear frequency modulation (LFM) signals based on a single electromagnetic vector sensor. The signals with different time-frequency (t-f) signatures permit the source discriminations through the flexibility of selecting t-f region. So by utilizing different t-f regions, the proposed method can distinguish the closely-spaced sources and perform signal selective DOA. Simulations illustrate the efficacy of the proposed algorithm.