For the second one, traditional RAKE receiver is explained from three parts, such as the path searching, the data demodulation and the channel estimation, while a new RAKE with inter-path interference canceller is derived. 从多径搜索、数据解调和信道估计三个方面对传统RAKE接收机进行了详细的讨论,引用了并行多径干扰抵消的算法并提出相应的RAKE接收机结构。