首先给出回放模型的建模思路以及对无线信道测量方法和测量仪器的要求；
The general method of playback channel modeling was introduced and the requirement on the wireless channel measurement was analyzed briefly.
文中推导了采用AR模型和MA模型对多径信道建模的正则方程，提出了采用混合模型消除直达波与杂波的迭代算法。
In this paper the regular equations of ar and MA models built for multipath channels are derived, and an iterative algorithm of direct signal and multipath clutter cancellation is proposed.
利用MATLAB及用fir滤波器做信道的传输函数模型对信道噪声和复衰减特性分别进行了建模。
The power line channel noise is simulated by MATLAB and the attenuation is simulated through the channel transmission module of FIR filter.
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