NEW SPATIAL SMOOTHING SCHEME FOR DIRECTION-OF-ARRIVALS OF CORRELATED SOURCES

Grenier D.; Bosse E.

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NEW SPATIAL SMOOTHING SCHEME FOR DIRECTION-OF-ARRIVALS OF CORRELATED SOURCES

机译：NEW SPATIAL SMOOTHING SCHEME FOR DIRECTION-OF-ARRIVALS OF CORRELATED SOURCES

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The performance of second-order methods in signal processing for spatial analysis is limited by the correlation between sources. The popular approach of spatial smoothing groups an equally spaced array into subarrays and then averages the covariance matrices of the subarrays to decorrelate coherent arrivals. In the new method proposed here, the decomposition is applied on the eigenvector spanning the signal subspace to reform the source subspace basis. Results of simulation show that the new scheme is more robust to noise. Comparison is made with the conventional spatial smoothing method in terms of variances on the estimated directions. [References: 7]

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《Signal Processing: The Official Publication of the European Association for Signal Processing (EURASIP)》 |1996年第2期|153-160|共8页
作者
Grenier D.; Bosse E.;
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UNIV LAVAL DEPT GENIE ELECT & GENIE INFORMAT CITE UNIV QUEBEC CITY PQ G1K 7P4 CANADA;

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原文格式 PDF
正文语种英语
中图分类通信;
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Signal processing; Spatial analysis; High resolution; Direction of arrivals; Coherent sources; Space diversity; Coherent signals;

NEW SPATIAL SMOOTHING SCHEME FOR DIRECTION-OF-ARRIVALS OF CORRELATED SOURCES

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