Multichannel analysis of surface waves (MASW) has played an important role in shear wave velocity survey of subsurface. Modern urban engineering construction needs more and more high-resolution detection of shallow underground objects. However, the traditional MASW method will reduce the detection depth when the receiving array length is reduced to improve lateral resolution. We propose a modified multichannel analysis method of surface waves based on short array stacked correlation gather (SCG-MASW) to solve this problem. The geometry of SCG-MASW is same as MASW, but surface wave dispersion is derived from short array stacked correlation gather instead of shot gather. Both theoretical and experimental data show that the SCG-MASW can improve the lateral resolution by using short receiving array, while not reducing the detection depth.

地表波的多通道分析（MASW）在地下剪切波速度调查中发挥了重要作用。现代城市工程建设越来越需要对地下浅层物体进行高分辨率检测。然而，当减小接收阵列长度以提高横向分辨率时，传统的MASW方法将减小检测深度。为了解决这个问题，我们提出了一种改进的基于短阵列堆积相关集（SCG-MASW）的表面波多通道分析方法。SCG-MASW的几何形状与MASW相同，但是表面波色散是从短阵列堆叠相关性聚集而不是散粒聚集中获得的。理论和实验数据均表明，SCG-MASW可以通过使用短接收阵列来提高横向分辨率，而不会减小检测深度。