一種在大隨機(jī)噪聲下提取奇點(diǎn)的方法
A METHOD FOR SINGULARITY EXTRACTION FROM PULSE RESPONSE WITH LARGE RANDOM NOISE
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摘要: 從目標(biāo)的脈沖響應(yīng)中提取目標(biāo)的復(fù)自然諧振頻率是一種識(shí)別目標(biāo)很有效的手段,但實(shí)時(shí)性和抗噪聲能力一直未能得到有效解決。本文提出的算法能在0dB信噪比條件下有效地提取目標(biāo)的復(fù)自然諧振頻率,且信號(hào)處理時(shí)間只需數(shù)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]王衛(wèi)延,奇點(diǎn)展開(kāi)法中直接提取極點(diǎn)的方法綜述,中國(guó)科學(xué)院電子學(xué)研究所,內(nèi)部資料,1985年.[3]賈有忠,馮孔豫,一種在大背景噪聲下提取極點(diǎn)的方法,當(dāng)代電子對(duì)抗技術(shù)學(xué)術(shù)交流會(huì)論文集,安徽合肥,1987年5月.[4]A. J. Berni, IEEE Trans. on AES, AES-11(1975), 147-154.[5]樊昌信等編,通信原理,國(guó)防工業(yè)出版社,1980年. -
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