Patent Document ID: 8743658
Application ID: 13097628
Patent Flag: 1

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