本文叙述频率和定时分析上的新慨念,把信号的频率、相位、或时间间隔看作时间的函畋,用调制域方法分析复杂信号。对跳频电台性能的分析、高速数字通信系统抖动分析、压控振荡器特性表征和雷达线性调频脉冲的线性分析等方面都带来很大的好处。调制域方法是一种分析能力很强的技术,是对常用的复杂信号分析采用时域和频域方法的有力补充和发展。 This article describes a new concept of frequency and timing analysis that takes the frequency, phase, or time interval of a signal as a function of time and uses a modulation domain approach to analyze complex signals. Analysis of frequency hopping radio performance, high-speed digital communication system jitter analysis, characterization of voltage-controlled oscillator characteristics and the linearity of the radar chirp analysis have brought great benefits. The modulation domain approach is a highly analytical technique that complements and evolves commonly used complex signal analysis using time-domain and frequency-domain approaches.