介绍了在移动通信系统中对抗多径衰落的一种重要技术——分集接收技术，并分析了各种分集、合并技术的优缺点，提出了RAKE接收机的概念和结构。 -Against multipath fading important technology- diversity reception technology in the mobile communication system, and analyze the advantages and disadvantages of the various sub-sets, merging technology RAKE receiver concepts and structures.