【摘要】 为了消除地震反射系数的影响,有效提取地震子波,提出一种基于最小均方误差准则的SIMO系统的盲均衡算法,该算法利用接收数据的截短协方差矩阵设计了直接均衡器,该方法是盲均衡算法在地震信号处理中的应用,避免传统反褶积运算中对称正定矩阵的限制,从而改善了算法的稳定性并提高收敛速度。计算机仿真表明,新算法可获得较优的地震子波,从而再利用地震子波对反射系数进行分析,并且具有很快的收敛速度。更多还原

【Abstract】 In order to eliminate the impact of seismic reflection coefficient and effectively extract seismic waves,a seismic blind equalization algorithm for SIMO systems based on minimum mean square error criterion is proposed.The algorithm uses the truncated covariance matrix of the received data to design the direct blind equalizer.The method is a novel application in the seismic signal processing.The novel algorithm avoids the constraints of symmetric positive definite matrix,and the stability of the algorithm and convergence speed is improved.Computer simulations demonstrate the novel algorithm can obtain the better seismic wavelet.Then,the reflection coefficient based on the obtaining seismic wavelet is analyzed,and the algorithm possesses quicker convergence speed.更多还原