基于调幅广播信号的动目标时差提取方法
Am signals-based time-difference extraction of moving targets
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摘要: 分析了调幅信号的循环平稳性,并结合CCC方法得到了基于调幅信号的固定目标时差提取方法;进一步在分析CCC方法不足的基础上得到了运动目标时差提取方法AM-ECCC方法,仿真结果表明该方法不仅比相关方法性能有明显的提高,并且具有很好的抗噪性能。Abstract: Cyclostationarity of AM signals is analyzed and time-difference extraction method based on Cycle Cross-Correlation(CCC) is presented in this paper. An Extended CCC method AM-ECCC method for moving targets is given also. Simulation results show that the given method can work more efficiently in highly corruptive environment than correlation method.
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张贤达.保铮,非平稳信号分析与处理,北京,国防工业出版社,1999,324-352[2]VV.A. Giardner, Measurement of spectral correlation, IEEE Frans. on ASSP, 19,86. ASSP-34(5).Illl 1123.[3]VV. A. Gardner, Chih-Kang Chen, Signal-selective time-difference-of-arrival estimat ion for passivc location of man-made signal sources in highly corruptive environments, Part. 1: Theory and method, IEEE Trans. on SP, 1992, SP-40(5), 1168-1184.[4]张贤达,现代信号处理,北京,清华大学出版社,1998,12,第十章. -
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