This paper presented a method to simulate the spatial varying ground motion with time-frequency non-stationarity, which combined the knowledge of stochastic process and phase-difference spectrum.

• 本文在前人工作的基础上提出了一种直接生成具有时-频非平稳特性的空间变异地震动的方法，即随机过程理论与相位差谱相结合的方法。