一種適用于常規(guī)雷達低角跟蹤的改進算法
AN IMPROVED ALGORITHM USED FOR LOW ANGLE TRACKING IN CONVENTIONAL RADAR
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摘要: 本文主要討論在常規(guī)雷達低角跟蹤中運用波束空間域最大似然(BDML)估計的實現(xiàn)技術。為了改善目標方向估計的性能,文中介紹了頻率分集(多個工作頻率),波束空間延拓,利用先驗信息,接收數(shù)據(jù)的預處理和估計數(shù)據(jù)的濾波處理等技術。最后還給出了雷達對目標跟蹤的計算機模擬結果。
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關鍵詞:
- 波束空間域; 最大似然; 雷達低角跟蹤
Abstract: This paper proposes a BDML estimator used for low angle tracking in conventional radar. In order to improve estimation performance for target direction, some signal processing methods are introduced, such as frequency diversity (multi-frequency processing), beam-space expansion, utilization of information a priari, snapshot data preprocessing and data filtering after BDML estimation etc. Finally, computer simulations are provided for target tracking. -
Zoltowski M, Lee T S. IEEE Trans. on SP, 1991, SP-39(3): 656-671.[2]高世偉,保錚.電子學報,1989,17(1): 1-7.[3]Ziskind I, Wax M. IEEE Trans. on ASSP, 1988, ASSP-36(10): 1553-1560.[4]Wang H, Kaveh M, IEEE Trans, on ASSP, 1985, ASSP-33(4): 823-831.[5]Shan T J, et al. IEEE Trans, on ASSP, 1985, ASSP-33(4): 806-811. -
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