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1·The features of Surface Nuclear Magnetic Resonance(SNMR) signal for underground water and the sources and characters of the spike noise distortion are analyzed.

首先分析了地面核磁共振信号的特征和奇异噪声的来源与特点，提出了相应的消除方法并进行了仿真研究。

2·Theoretically, the expected output of impulse deconvolution is a spike, whose frequency spectrum can be considered as that of white noise.

从理论上说，脉冲反褶积的希望输出信号是一个尖脉冲，其频谱可以看成是一个白噪信号的频谱。