Title :
A High Resolution Spatial Smoothing Algorithm
Author :
Mei, Dong ; Shouhong, Zhang ; Xiangdong, Wu ; Huanying, Zhang
Author_Institution :
Xidian Univ., Xii´´an
Abstract :
A high resolution spatial smoothing algorithm which takes cross correlation to the autocorrelation matrixes of subarray output is proposed to increase the angular resolution of conventional spatial smoothing techniques. The formula for the algorithm is derived, and the performance of the algorithm is also analyzed. Simulation results demonstrate that the improved algorithm possesses a better resolving ability and a lower SNR threshold than the conventional spatial smoothing technique and the subarray cross correlation spatial smoothing technique for DOA estimation of coherent signals.
Keywords :
correlation methods; direction-of-arrival estimation; smoothing methods; DOA estimation; angular resolution; autocorrelation matrixes; coherent signals; high resolution smoothing algorithm; spatial smoothing algorithm; subarray cross correlation; subarray output; Autocorrelation; Cascading style sheets; Covariance matrix; Microwave antennas; Microwave theory and techniques; Sensor arrays; Signal processing algorithms; Signal resolution; Smoothing methods; Spatial resolution; DOA estimation; correlation; spatial smoothing;
Conference_Titel :
Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications, 2007 International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-1045-3
Electronic_ISBN :
978-1-4244-1045-3
DOI :
10.1109/MAPE.2007.4393443
