Direction-of-arrival estimation of multipath signals using independent component analysis and compressive sensing.

ABSTRACT: Multipath signal is often considered an interference that must be removed. The coherence between multipath and direct component makes it difficult to use conventional direction-of-arrival (DOA) estimation methods in a smart antenna system. This study demonstrates a new multipath signal DOA estimation technique. Unlike the common methods, without decoherence preprocessing, the proposed algorithm first apply a complex fast independent component analysis (cFastICA) algorithm to obtain the steering vectors with multipath information that corresponds to each source signal. Then, according to the special structure of the obtained steering vectors and spatial sparsity of the multipath signal components, the algorithm uses the solution of the sparse signal reconstruction problem in the compressive

SUBMITTER: Zhao L 

PROVIDER: S-EPMC5531488 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature