【摘要】 在介绍K-L变换压制噪声的理论依据基础上,通过建立理论模型进行试算研究和分析,得出必须注意的结果:K-L变换滤波有压制倾斜相干信号的作用。当特征值选取不当时,可能起模糊断层的作用。最后建议:对这种具有潜在的有可能危害有效信号的压噪技术,在工作中慎用或不用K-L变换。更多还原

【Abstract】 This paper deals with the theory in which the K-L transform suppresses the noise.Through research and analysis of the theoretical model,the authors have reached the following conclusion: although the K-L transform filtering can suppress the inclined coherent signal,it can also blur the fault signal if the characteristic value chosen is not suitable.It is thus held that,as the noise-suppressing technology can destroy the effective signal,one must be careful in using it or even should avoid using it in the work.更多还原