Abstract:Signal-to-noise ratio of seismic data can he raised using lateral coherency of signals.we advanced a method for enhancing the seismic signals of stack section by making polynoinial fitting of signals.Signal parameters can be represented by phase time, amplitude and common waveform on the assumption that a seismic signal has same waveforms on all traces. This method includes the following steps;2.Determine both signal amplitude polynomial in the window and expected signal waveform using least square method; Note: Same computation for each window is made to get a parameter set for the signal section, there being both coefficients of two polynomials and an expected wavetorm for each window.2. Synthesize signal section using the parameter set derived,This method is approximate to trace summation; however, it can detect signals automatically and is not limited by the slope and curvature of reflection leg, It was applied'to' rtal seismic stack section, and obvious effect was found,This method also can be used in trace-inter-polation of 2D or 3D seismic data.
收稿日期: 1987-10-06
引用本文:
俞寿朋, 蔡希玲, 苏永昌. 用地震信号多项式拟合提高叠加剖面信噪比[J]. 石油地球物理勘探, 1988, 23(2): 131-139.
Yu Shoupeng. Improvement of signal-to-noise ratio of stack section using polynomial fitting of seismic signals. OGP, 1988, 23(2): 131-139.