Then, considering the modulation and non-stationarity of RFI, we propose the modulated model and time-variant AR model.Solutions using the base function expansion are introduced.

• 然后，针对RFI信号的调制特性和非平稳性，分别提出了其调制模型和时变AR模型，并讨论了采用基函数展开形式的模型求解方法。