摘要
本文提出一种获取地震波反射系数的反滤波方法.这种方法对反射系数的估计量具有最小误差方差的性质.由于这种方法是用递推、同址计算的方式实现的,因此它仅需较少的运算操作和存贮单元.
Extracting the reflection coefficients of layers from seismic signals is important to the lithologio analysis and the success rate of drilling in finding the oil-gas-bearing structure. In this paper, an algorithm of deconvolution for the extraction of reflection coefficients is presented. The estimator got from this algorithm has the smallest variance of error among all linear estimators of reflection coefficients. The algorithm requires only a few computations and memory cells because of its recursive, in-place computation. Eesults of simulation indicate that, if the NSE (noise-to-signal ratio)is less than 30%, the algorithm is better in precision than Levinson's algorithm; if the NSR condition is worse, the two algorithms approximately have the same error curve.
出处
《应用科学学报》
CAS
CSCD
1989年第1期19-24,共6页
Journal of Applied Sciences
