本文首先分析了取样－保持器和闪烁式ＡＤＣ用于动态模拟信号数字化时最高频率受限的主要原因。然后重点阐述了近年来在国外出现的超高速宽带信号取样－滤波数字化机理和实现方案，证明了高斯滤波器的一项重要特性。将这种技术用于超高速交替式（ｉｎｔｅｒｌｅａｖｉｎｇ）数据采集系统中，信号的实时取样速率目前已达１０Ｇｓａ／Ｓ。 This paper first analyzes the main reasons why the sample-and-hold converter and scintillation ADC are used to limit the maximum frequency of a digitally dynamic analog signal. Then it highlights the ultra-high-speed broadband signal sampling-filter digitization mechanism and its realization scheme abroad which have appeared in recent years, which proves one important characteristic of Gaussian filter. Using this technique in ultra-high speed interleaving data acquisition systems, the real-time sampling rate of the signal currently reaches 10 Gsa / s.