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反褶积处理已纳入地震资料的常规处理流程。实现反褶积处理的关键在于求解托布里兹矩阵。为了提高运算速度,通常采用快速递推解法。在小型定点计算机(DJS-130)上采用彭永孟的递推算法(彭永孟,托布里兹方程组的一种递推解法,《石油球地物理勘探》,第3期,1980)比较得当。采用彭氏算法时,应注意以下几点: 1.初值(或比例因子)应尽量选取大一些,但不要引起运算的溢出(对16位字长的计算机而言)。 2.运算中乘积结果要用双倍字长表示,与此有关的运算亦需用双字长运算。
Deconvolution has been incorporated into the routine processing of seismic data. The key to achieving deconvolution is solving the Tobritz matrix. In order to improve the speed of operation, usually using fast recursive solution. PENG Yong-Meng’s recursion algorithm (Peng Yongmeng, a recursive solution to the Tobritz equation, “Petroleum Geophysical Prospecting”, No. 3, 1980) is more appropriate on small fixed point computers (DJS-130). When using Peng’s algorithm, the following points should be noted: 1. Initial value (or scale factor) should be selected as large as possible, but do not cause overflow operation (for 16-bit word computer). 2. The product of the operation results to double word length, and the operation associated with this also need double word length operation.