Title :
Uni-vector-sensor SOS/HOS-CSS for wide-band non-Gaussian source direction finding
Author :
You-gen, Xu ; Zhi-wen, Liu ; Guang-xiang, Yao
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., China
Abstract :
The uni-vector-sensor and second-order statistics (SOS)/higher-order statistics (HOS) based coherent signal subspace (UVS-SOS/HOS-CSS) technique is herein proposed for 2-D direction finding of multiple wide-band partially/completely correlated sources with non-vanished Kurtosis. Both the UVS-SOS-CSS and the UVS-HOS-CSS inherit the original coherent signal subspace (CSS) technique in coherently accumulating a group of quadrcovariance matrices associated with different frequency bins, but differs from it in eliminating the focusing operation due to the frequency-independence feature enjoyed by ONE VS´s manifold vector. This UVS-SOS/HOS-CSS also excels the spatial smoothing (SS) technique in saving aperture, being blind to Gaussian noise of unknown SOS for coherent sources, and applicability to general array geometry. Representative examples demonstrating this present UVS-SOS/HOS-CSS´s behavior are also given.
Keywords :
Gaussian noise; array signal processing; direction-of-arrival estimation; higher order statistics; smoothing methods; Gaussian noise; array geometry; coherent signal subspace technique; frequency bins; frequency-independence feature; higher-order statistics; multiple wideband partially sources; nonvanished Kurtosis; quadrcovariance matrices; second-order statistics; spatial smoothing technique; univector-sensor; wideband nonGaussian source direction finding; Cascading style sheets; Direction of arrival estimation; Frequency; Gaussian noise; Multiple signal classification; Polarization; Sensor arrays; Smoothing methods; Statistics; Wideband; Coherent Signal Subspace (CSS); Direction-of-arrival (DOA); MUltiple SIgnal Classification (MUSIC); Vector-Sensor (VS); Wide-band Signal;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2005. MAPE 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9128-4
DOI :
10.1109/MAPE.2005.1618045
