用卡尔曼滤波器估计地震波强度

本文将信号保真作为估值问题,应用卡尔曼滤波方法对不同炮检距上的地震反射记录强度给出一种有效估计。经这种方法处理后可直接产生零炮捡距剖面和其它炮检距道的估值,供波阻抗恢复、速度反演、偏移和AVO分析使用。合成记录和野外记录的算例表明:本方法对记录强度随炮检距变与不变的记录,处理结果均具有相近的保真效果。

Estimation of seismic refl(?)tion ampl(?)ude using Kalman filter

Signal fidelity is considered as estimation problem. Seismic reflection amplitudes of different-offset traces can be effectively estimated by using Kalman filtering. After this estimation processing, we can obtain zero-offset section and the estimated amplitudes of other nonzero-offset traces, which can be used in wave impedance recovery, velocity inversion, migration and AVO analysis. The examples of synthetic and real seismic records show that with the use of this method, both the seismic data whose reflection amplitude varies with offset and the seismic data whose reflection amplitude remains unchanged can be processed to have nearly the same fidelity effect.