一种在大随机噪声下提取奇点的方法
A METHOD FOR SINGULARITY EXTRACTION FROM PULSE RESPONSE WITH LARGE RANDOM NOISE
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摘要: 从目标的脉冲响应中提取目标的复自然谐振频率是一种识别目标很有效的手段,但实时性和抗噪声能力一直未能得到有效解决。本文提出的算法能在0dB信噪比条件下有效地提取目标的复自然谐振频率,且信号处理时间只需数十毫秒。Abstract: Target identification by its complex natural frequencies is considered the one of the mosi prospective methods. However, the tolerance of SNR and the real-time behaviour of the method can not be met simultaneously in the process of extracting the frequencies from target s pulse response. In this paper, an aproach algorithm for the natural frequencies detection are proposed. The algorithm is still efficient in case of SNR=0dB, and takes only tens millisecond.
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C. W. Chuang, IEEE Trans. on AES, AES-12(1976), 583-589.[2]王卫延,奇点展开法中直接提取极点的方法综述,中国科学院电子学研究所,内部资料,1985年.[3]贾有忠,冯孔豫,一种在大背景噪声下提取极点的方法,当代电子对抗技术学术交流会论文集,安徽合肥,1987年5月.[4]A. J. Berni, IEEE Trans. on AES, AES-11(1975), 147-154.[5]樊昌信等编,通信原理,国防工业出版社,1980年. -
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