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This work proposes a method for localizing a single near-field source using a moving array. Using a phase correction factor calculated from two sequences of selected data snapshots, we extend the array aperture and compute the initial estimates of the source's bearing and range from the extended data sets. With the initial estimates of bearing and range we construct a phase difference factor to modify...
Maximum a posterior (MAP) estimator has been shown to perform perfectly for direction-of-arrival (DOA) under the assumption that the number of sources is known. Specifically, in this work we proposed a MAP estimator for DOA, and extend it to a new approach called DDBM for joint detection and DOA estimation simultaneously. Results of both simulation and experiment demonstrate that the proposed method...
This work develops an iterative solution to maximum likelihood estimation of source parameters in unknown but partially correlated non-uniform noise field when a moving array is used for data collection. With the proposed solution, the temporal frequencies and the direction of arrivals (DoAs) of source signals can be obtained effectively. Computer simulated experiments are carried out to demonstrate...
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