| A Modified Root-MUSIC Algorithm for Signal DOA Estimation |
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| 摘 要： | 1.INTRODUCTIONRoot-MUSICalgorithmandspectralMUSICalgorithmbothbelongtoeigendecompositionmethodforsignalDOA(DirectionofArrival)estimation.ButtheirexactcomputingproceduresofdeterminingthesignalDOAanglesaredifferentslightly,theformerisbasedontherootslocatedontheunitcircleofhigh-orderpolynomialwhichcomesfromnoisesubspace,thelatteristhroughsearchingthespatialspectrumconstructedbynoisesubspaceandfindingoutthepeaks.Furthermore,Root-MUSICalgorithmonlycanbeapplicabletouniformlineararray1…
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A Modified Root-MUSIC Algorithm for Signal DOA Estimation |
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| Abstract: | This paper presents a modified Root-MUSIC algorithm by which the signal DOA estimation performance can be improved when the snapshot number is limited. The operation principlesof this algorithm are described in detail. It is also pointed out theoretically that this is equivalentto have increased the snapshot number and can make the DOA estimation better. Finally, somesimulating results to verify the theoretical analyses are presented. |
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| Keywords: | Array signal processing Root-MUSIC algorithm Signal DOA estimation Eigendecomposition |
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