Experimental research for direction of arrival estimation based on signal phase matching principle  

作　　者：HOU Hong XIAO Hui SUN Jincai 

机构地区：[1]College of Marine Engineering, Northwestern Polytechnical University Xi'an 710072

出　　处：《Chinese Journal of Acoustics》2007年第1期28-38,共11页声学学报（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China (60272077) the Fund of Aviation Science (02F53030)the Fund of Science from Shaan'xi Province (2002F17)

摘　　要：In order to test the validity of signal phase matching principle （SPMP） applied to direction of arrival （DOA） estimation, experiments are carried out at a reservoir using 16 sensors array. Two kinds of method, Least Square Method for Signal Matching principle （LSMSPM） and singular value decomposition method for signal matching principle （SVDSPM）, are used for DOA estimation. Their performances were analyzed and compared with MUSIC and conventional beam-forming （CBF） method. The results show that the 3 dB beam width obtained by SPMP is 1/4 to 1/7 as much as that obtained by CBF and 1/2 to 1/3 by MUSIC method. In addition, LSMSPM and SVDSPM are available for multi-sources DOA estimation and high resolution DOA estimation, which demonstrates that DOA estimation by SPMP method is better than that by MUSIC and CBF method.In order to test the validity of signal phase matching principle （SPMP） applied to direction of arrival （DOA） estimation, experiments are carried out at a reservoir using 16 sensors array. Two kinds of method, Least Square Method for Signal Matching principle （LSMSPM） and singular value decomposition method for signal matching principle （SVDSPM）, are used for DOA estimation. Their performances were analyzed and compared with MUSIC and conventional beam-forming （CBF） method. The results show that the 3 dB beam width obtained by SPMP is 1/4 to 1/7 as much as that obtained by CBF and 1/2 to 1/3 by MUSIC method. In addition, LSMSPM and SVDSPM are available for multi-sources DOA estimation and high resolution DOA estimation, which demonstrates that DOA estimation by SPMP method is better than that by MUSIC and CBF method.

分 类 号：O422[理学—声学]