Low-complexity method for DOA estimation based on ESPRIT-中国Betway体育网页登陆

摘要 Alow-complexitymethodfordirectionofarrival(DOA)estimationbasedonestimationsignalparametersviarotationalinvariancetechnique(ESPRIT)isproposed.Insteadofusingthecross-correlationvectorsinmultistageWienerfilter(MSWF),theorthogonalresidualvectorsobtainedinconjugategradient(CG)methodspanthesignalsubspaceusedbyESPRIT.Thecomputationalcomplexityoftheproposedmethodissignificantlyreduced,sincethesignalsubspaceestimationmainlyneedstwomatrixvectorcomplexmultiplicationsattheiterationofdatalevel.Furthermore,thepriortrainingdataarenotneededintheproposedmethod.Toovercomeperformancedegradationatlowsignaltonoiseratio(SNR),theexpandedsignalsubspacespannedbymorebasisvectorsisusedandsimultaneouslyrendersESPRITyieldredundantDOAs,whichcanbeexcludedbyperformingESPRIToncemoreusingtheunexpandedsignalsubspace.ComparedwiththetraditionalESPRITmethodsbyMSWFandeigenvaluedecomposition(EVD),numericalresultsdemonstratethesatisfactoryperformanceoftheproposedmethod.

1.A METHOD FOR SOLVING DOA ESTIMATION AMBIGUITY IN ESPRIT ALGORITHM.物理电子学,2000-04.
2Li Wern CHEW Li-Minn ANG Kah Phooi SENG.A low-complexity line-based motion estimation algorithm and its hardware architecture.计算机应用技术,2008-09.
3Xu Wenlong Jiang Wei Li Zengfu Shang Yong Xiang Haige.A SUBARRAY-SYNTHESIS BASED 2D DOA ESTIMATION METHOD.物理电子学,2006-05.
4Zhi-fei Chen Jin-cai Sun Hong Hou.Phase Difference Method for DOA Estimation.船舶与海洋工程,2010-04.
5Yang Liming Zhang Hou Yang Xiaorong.DOA ESTIMATION FOR WIDEBAND SOURCES BASED ON UCA.物理电子学,2006-01.
6Zhang Ningbo Kang Guixia Guo Yanyan Zhang Ping.A LOW-COMPLEXITY PORT SELECTION AND POWER ALLOCATION SCHEME IN DISTRIBUTION MIMO SYSTEMS.物理电子学,2010-02.
7Jiaqi Zhen;Zhifang Wang.DOA estimation method for wideband signals by block sparse reconstruction.物理电子学,2016-01.
8Jiaqi Zhen;Zhifang Wang.DOA estimation method for wideband signals by sparse recovery in frequency domain.物理电子学,2017-05.
9.A NEW ESPRIT METHOD FOR BLIND ESTIMATES OF DOA-DOPPLER FREQUENCY WITH UNKNOWN ARRAY MANIFOLD.物理电子学,1998-01.
10Yang Yang Wang Jinlong Wu Qihui Liu Xin.LOW-COMPLEXITY JOINT BEAMFORMING AND POWER ALLOCA-TION FOR SINR BALANCING IN COGNITIVE RADIO NETWORKS.物理电子学,2010-05.

Low-complexity method for DOA estimation based on ESPRIT

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