基于点扩展函数，推导出共焦系统的成像公式，模拟了探测器尺寸对分辨率的影响，并提出最佳针孔半径。

The imaging equations are derived based on point spread function, the influence of detector on resolution is simulated, and the optimum pinhole radius is proposed.

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采用这种宽孔径成像方法的结果表明，即使对单个共炮点道集也能收到相当好的成像效果。

The use of wide aperture image method even makes single common-shot gather find quite good image result.

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然后对该道集进行速度分析、动校正和叠加，得到偏移地震剖面，即共散射点成像。

Then the trace gather undergoes velocity analysis, normal moveout correction and stack to bring seismic migrated section ( This is called scattering point imaging).

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