Title :
An improved method for DOA estimation using one snapshot
Author :
Jun-lin Wang ; Hong-yu Bian
Author_Institution :
Sci. & Technol. on Underwater Acoust. Lab., Harbin Eng. Univ., Harbin, China
Abstract :
The ability of decorrelation based on the mathematical model using one snapshot for DOA estimation is analyzed in the paper, and it is presented how to select the snapshot point. Then a new cumulation method is proposed using the periodicity of the transmitted signal. The proposed method can provide better DOA estimation performance at low SNR. The simulation results are presented, which indicate the proposed method is effective.
Keywords :
Toeplitz matrices; decorrelation; direction-of-arrival estimation; DOA estimation performance; SNR; Toeplitz matrix; cumulation method; decorrelation; direction of arrival estimation; mathematical model; snapshot point selection; transmitted signal periodicity; DOA estimation; Toeplitz matrix; coherent sources; cumulation;
Conference_Titel :
Signal Processing (ICSP), 2012 IEEE 11th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-2196-9
DOI :
10.1109/ICoSP.2012.6491671
