噪扰条件下多基线相位干涉仪解模糊算法
Algorithm of Solving Multi-baseline Interferometer Phase DifferenceAmbiguity in Noisy Circumstance
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摘要: 针对多基线相位干涉仪在宽带测向时存在的问题,该文提出了一种基于中国余数定理的相位差解模糊算法,研究了噪扰条件下正确解模糊的条件。该方法选择基线长度满足一定的参差关系,从而解决了测向精度与最大不模糊角度之间的矛盾。计算机仿真证明了该方法的有效性。Abstract: For the problem of multi-baseline interferometer in wideband direction finding, a algorithm of solving multi-baseline interferometer phase difference ambiguity based on Chinese remainder theorem is given and the condition of correctly solving ambiguity in noisy circumstance is studied. The algorithm selects baseline length satisfied stagger qualification, thereby solving conflict between accuracy of direction finding and maximum unambiguity angle. The performance of the algorithm is effectively demonstrated by computer simulation.
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McCormick W S, Tsui J B Y, Bakkie V L. A noise insensitive solution to an ambiguity problem in spectral estimation[J]. IEEE Trans. on 4ES, 1989, 25(5): 729 - 732.[2]Malloy N J. Analysis and synthesis of general planar interferometer arrays. IEEE lCASSP-83, 1983:352 - 355.[3]Zoltwski M D, Mathews C P. Real-time frequency and 2-D angle estimation with sub-Nyquist spatiotemporal sampling[J]. IEEE Trans. onSP, 1994, 42(10): 2781 - 2794.[4]Sundaram K R, Mallik R K, Murthy U M S. Modulo conversion method for estimation the direction of arrival. IEEE Trans. on AES, 2000, 36(4): 1391- 1396.[5]Jacobs E, Ralston W E. Ambiguity resolution in interferometry.IEEE Trans .on AES, 1981, 17(2): 766 - 779.[6]Addison E R, Frost E L. Resolution of ambiguous radar using a floating bin correlator. Proceedings of IEEE 1982 International Radar Conference, Washington, 1982:35 - 41.[7]许邦建.多频连续波测距雷达关键理论、算法的研究和软硬件实现.[博士论文],国防科技大学电子科学与工程学院,2001.9.[8]皇甫堪.多频连续波测距中的若干问题研究.技术报告,国防科技大学电子科学与工程学院,2002,3.[9]沈福民,贾永康.相位测距中的解模糊技术.西安电子科技大学学报,1997,24(1):52-57. -
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