一種基于二階統(tǒng)計(jì)量的近場源三維參數(shù)估計(jì)方法
A Three-Dimensional Parameter Estimation Method of Near Field Sources Based on Second Statistics
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摘要: 該文研究近場源的距離、角度和頻率的三維參數(shù)估計(jì)問題。提出了一種僅需利用二階統(tǒng)計(jì)量和相應(yīng)的配對(duì)程序就能直接估計(jì)出參數(shù)的新方法。該方法無需譜峰搜索，同時(shí)避免應(yīng)用四階累積量，減輕了算法的計(jì)算量。仿真實(shí)驗(yàn)證明了該算法的有效性。Abstract: In this paper, the problem of the frequency, bearing and range estimate in near field is considered. Only using second statistics and corresponding pairing program, the proposed algorithm can estimate parameters. The method does not need spectral peak searching, and can avoid using fourth-order cumulant, reduce calculating burden. The effectiveness of the method is demonstrated through some simulation examples.
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Starer D, Nehorai A. Passive localization of near-field sources by path following[J].IEEE Trans. on SP.1994, 42(3):677-[3]Huang Y D, Barkat M. Near-field multiple source localization by passive sensor array[J].IEEE Trans. on Antennas and Propagation.1991, 39(7):968-[4]Lee J H，Lee C M, Lee K K. A modified path-following algorithm using a known algebraic path[J].IEEE Trans. on SP.1999, 47 (5):1407-[7]Abred-Meraim K.[J].Hua Y. 3-D near field source localization using second order statistics. Conference Record of the Thirty-First Asilomar Conference on Signals, Systems Computers, PacificGrove, CA, USA.1997,:- -
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