直序扩频通信系统仿真框图可知，系统主要组成分为七个部分，分别为信源部分、扩频部分、调制部分、信道传输部分、解调部分、解扩部分和信宿部分。-The main components of the system are divided into seven parts: the source part, the spreading part, the modulation part, the channel transmission part, the demodulation part, the despreading part and the sink part respectively.