Patent Document ID: 20120275271
Application ID: 13097628
Patent Flag: 0

Claim One:
1. A method for determining a direction of arrival of a signal generated by a source in a plurality of sources, comprising: a processor estimating a first direction of arrival for a previous signal generated by the source with a particle filter operating in a time-frequency domain; receiving by a plurality of receivers a plurality of signals from the plurality of sources, the plurality of signals including the signal, at least two of the received signals being correlated; the processor determining a regularization factor and a weighting factor for each of a plurality of frequency components of the signal; the processor determining a likelihood for the direction of arrival for each of the plurality of frequency components of the signal based on the regularization factor and the weighting factor; the processor determining a global likelihood for the direction of arrival of the signal based on the likelihood for the direction of arrival for each of the plurality of frequency components of the signal; the processor updating a plurality of weights of the particle filter; and the processor generating an estimate of the direction of arrival of the signal by applying the updated weights of the particle filter.