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1·This paper presents a blind algorithm to estimate the signal-to-noise ratio(SNR) of a communication signal in multipath Rayleigh fading channel .

提出了一种在多径瑞利衰落信道中的信噪比盲估计算法。

2·The Results indicate that the horizontal response of pile to Rayleigh wave is affected by frequency, character of soil medium, pile-soil rigidity ratio.

结果表明，饱和土介质中桩对瑞利波的 横向 响应受波的频率、土介质性质、桩—土刚度比等因素的影响。

3·In petroleum seismic exploration records, Rayleigh waves belong in disturbing waves which should be removed from the records before deconvolution and stacking so as to raise signal-to-noise ratio.

石油地震勘探记录中的瑞雷面波是一种干扰波，在反褶积和叠加前必需首先将面波从炮记录中分离出来，以提高叠加剖面的信噪比。