基于时域双谱估计的超宽带雷达目标特性分析
ANALYSIS OF UWB RADAR TARGET CHARACTERISTIC BASED ON TIME-DOMAIN BISPECTRUM ESTIMATION
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摘要: 本文利用UWB雷达目标冲击响应局部分量,针对复杂目标,提出了一种时域双谱估计算法,能准确地估计出目标的散射中心分布。根据上述算法利用自行研制的冲激雷达实验系统对缩比飞机模型的实测数据作了分析,结果表明了算法的有效性。Abstract: In this paper, using the component of the impulse response of target, a time-domain bispectrum estimating algorithm based on complex target is presented, this algorithm can estimate the scattering centers of target. The experimtental data of the compression airplane model according to proportion was analyzed in term of the above algorithm, using the impulse radar experimental system which is developed by the Team of Anti-Stealth Impulse Radar, Department of Electrical Engineering, National University of Defense Technology. The validity of the algorithm was shown by the experimental results.
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Ismain I Jouny, Walton Eric K. Target identification using bispectral analysis of ultra-wideband radar data. Ultra-wideband radar: Proceedings of the First Los Alamos Symposium, ED. by Bruce Noel, 1991, 405-416.[2]Nikias C L, Ranghuveer M R. Bispectrum estimation: A digital signal processing framework[J].Proc. IEEE.1987, 75(7):869-891[3]Marimarelis V Z, Sheby D. Evaluation of ultra-wideband echo data using bispectral processing techniques. SPIE92, Ultrawideband radar, 1992, 1631: 71-84.[4]Walton E K, Jouny 11. Bispectrum of radar signatures and application to target classification. Radio Science, 1989, 1990, 25(2): 101-113.[5]Hao T S, Gaber M M. An Introduction to Bispectrum Analysys and Bilinear Time Series Modes. New York: Springer-verlag, 1984, 253.[6]匡纲要.UWB雷达目标建模和信号设计:[博士论文].长沙:国防科技大学,1995. -
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