Matching pursuit is able to decompose signals adaptively into a series of wavelets and has been widely applied in signal processing of the geophysical fields. Single-channel matching pursuit could not take into account the lateral continuity of seismic traces, and the recent multichannel matching pursuit exploits the lateral coherence as a constraint, which helps to improve the stability of decomposition results. However, atoms searched by multichannel matching pursuit currently are just shared by lateral seismic traces at the same time slicers. The lack of directionality in multichannel search strategies leads to irrationality in dealing with large dip angle seismic traces. Considering that the waveforms of reflection events are relatively continuous and similar, an improved multichannel matching pursuit is proposed to realize the directional decomposition of adjacent signals. Based on the principle of seismic reflection events tracking and identification, directional multichannel decomposition of seismic traces is realized. The seismic channel to be decomposed is correlated with the time shift of the optimal atom determined by the previous seismic channel. The time position of the maximum correlation indicates the center time of the optimal atom. Optimal atoms identified by one iteration of multichannel decomposition have the same frequency and phase parameters, different center time and amplitude parameters. The center time of the optimal atoms is consistent with seismic reflection events. Tests illustrate that the algorithm can successfully reconstruct 2D seismic data without reducing accuracy. Besides, the application of field data is of great significance for reservoir exploration and hydrocarbon interpretation.

匹配追踪能够将信号自适应地分解为一系列小波，并已广泛应用于地球物理场的信号处理中。单通道匹配追踪不能考虑地震道的横向连续性，近来的多通道匹配追踪以横向相干性为约束条件，有助于提高分解结果的稳定性。但是，通过多通道匹配追踪搜索的原子当前仅在同一时间切片器上被横向地震道共享。多通道搜索策略中缺乏方向性导致在处理大倾角地震道时不合理。考虑到反射事件的波形相对连续且相似，提出了一种改进的多通道匹配追求，以实现相邻信号的方向分解。基于地震反射事件跟踪与识别原理，实现了地震道的定向多通道分解。待分解的地震通道与由先前地震通道确定的最佳原子的时移相关。最大相关性的时间位置指示最佳原子的中心时间。通过一次多通道分解迭代确定的最佳原子具有相同的频率和相位参数，不同的中心时间和振幅参数。最佳原子的中心时间与地震反射事件一致。测试表明，该算法可以成功地重建二维地震数据，而不会降低精度。除了，