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基于运动学原理对转换波DMO脉冲响应近似公式进行修正,从修正后的公式出发推导出一种新的f-k域转换波真振幅DMO算法。脉冲响应曲线的对比表明对脉冲响应近似公式的修正明显减少了误差。理论模型试验结果表明算法具有较高的运动学精度及保幅性能,是一种可靠、理想的转换波DMO算法。
Based on the principle of kinematics, the approximate formula of converted pulse DMO impulse response is modified, and a new DMO algorithm of f-k domain converted wave is deduced from the modified formula. The comparison of the impulse response curves shows that the correction of the approximate formula of the impulse response significantly reduces the error. The theoretical model test results show that the algorithm has high kinematic accuracy and amplitude preserving performance, and is a reliable and ideal converted wave DMO algorithm.