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 Zhi-fei Chen,Jin-cai Sun and Hong Hou.Phase Difference Method for DOA Estimation[J].Journal of Marine Science and Application,2010,(4):445-450.
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Phase Difference Method for DOA Estimation


Phase Difference Method for DOA Estimation
Zhi-fei Chen Jin-cai Sun and Hong Hou
Zhi-fei Chen Jin-cai Sun and Hong Hou
College of Marine, Northwestern Polytechnical University, Xi’an 710072, China
direction of arrival(DOA) phase difference peak width variance resolution
The phase difference method (PDM) is presented for the direction of arrival (DOA) estimation of the narrowband source. It estimates the DOA by measuring the reciprocal of the phase range of the sensor output spectra at the interest frequency bin. The peak width and variance of the PDM are presented. The PDM can distinguish closely spaced sources with different and unknown center frequencies as long as they are separated with at least one frequency bin. The simulation results show that the PDM has a better resolution than that of the conventional beamforming.


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Last Update: 2011-04-29