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本文提出了L_p相关的基本概念、定义及性质。特别分析了P=1的L_1相关与普通相关不同的特点,并将之应用于地震信号速度谱分析。本文分析了速度信息寄载于地震记录中的基本特点,并采用L_1相关技术进行速度分析。结果表明,它比普通相关及符号位相关能更充分地提取地震信号中的速度信息,从而提高速度谱的质量和抗干扰能力。L_1相关不用乘法运算,因而大大减少了运算量。 使用新方法和普通方法对理论模型和实际地震信号进行对比研究,结果说明新方法的改善效果是明显的。
This paper presents the basic concepts, definitions and properties of L_p. In particular, we analyze the different characteristics of L_1 correlation with P = 1 and apply it to the velocity spectrum analysis of seismic signals. In this paper, the basic characteristics of velocity information in seismic records are analyzed, and the velocity of L_1 correlation technique is analyzed. The results show that it can extract the velocity information of the seismic signal more fully than ordinary correlation and sign bit correlation, so as to improve the quality of the velocity spectrum and anti-interference ability. L_1 correlation without multiplication, thus greatly reducing the amount of computation. Using the new method and the common method to compare the theoretical model with the actual seismic signal, the result shows that the improvement effect of the new method is obvious.