多次复盖已成为现代地震反射法野外资料采集的最基本的方法技术。在处理多次复盖资料时,人们应用迭加速度、均方根速度等概念,而以往常用的有效速度概念却很少提了。为了提高迭加质量,以及搞好偏移迭加和归位处理(三度的),还应引入射线速度 Multiple cover has become the most basic method of field data collection of modern seismic reflection method. When dealing with multiple overlays, people apply concepts such as stacking speed and root mean square speed, whereas the concept of effective speed, which is commonly used in the past, is seldom mentioned. In order to improve the quality of superposition, as well as to do offset superposition and homing (three degrees), but also the introduction of ray velocity