摘要
在频率—空间域实现τ—P变换,优于时间—空间域或频率—波数域两类传统的τ—p变换方法。其关键在于不需要对原有序列进行重采样插值运算,因而比传统方法精确、快速。只要按简单的准则选取p值的个数和步长,并进行最小二乘反滤波,即能有效地克服假频效应和端点效应。
To perform τ-p transform in frequency -space domain is believed to have more advantages over the two conventional methods of doing it in time-space domain or in wavenumber domain. What's considered critical is that there is no need in prat-ice to perform the calculation of resampled interpolation for the original sequence. So the method suggested could yield much faster and more accurate result as compared with the conventional ones. So long as you can pick out the number and steplength of the value P with reference to the basic criteria established and perform the least square inversion filtering,both alias effect and end effect could thus be negated. As a consequence.a most desirable outcome resulted from the transform could be produced.
出处
《石油物探》
EI
CSCD
北大核心
1992年第1期29-35,共7页
Geophysical Prospecting For Petroleum
关键词
时移定理
二乘反滤波
τ-ρ变换
τ-p Transform, Time Shift Theorem, Least Square Inverse Filtering
