指数、对数和线性扫描已经使用了多年,并在许多方面获得成功。这些扫描受到它们的基本函数的约束,该函数在可控震源产生振动时提供高、低或均匀的频率加权。这些严格地定义的扫描函数只能给复杂的地质条件(它控制着声频吸收、传输和噪音生成)以少量的简化解。变扫描(Varisweep)模式是一种交互式的野外方法,在给定的地质状态和记录系统下,通过它来模拟可控 Exponential, logarithmic and linear scans have been used for many years and have been successful in many ways. These scans are constrained by their basic functions, which provide high, low or even frequency weighting when vibrators vibrate. These strictly defined scan functions can only give a small amount of simplified solution to complex geological conditions that control the absorption of sound, transmission, and noise generation. Varisweep mode is an interactive field approach that simulates controllable under a given geologic state and recording system