摘要
介绍了直接扩频通信技术的理论基础,并给出了一种直接扩频通信系统结构框图。选择m序列作为扩频码序列,QDPSK作为调制方式,采用VHDL语言在MAX+plusⅡ软件平台上实现了该系统发射模块信号仿真,仿真波形达到了预期的效果。
This paper introduces the theory bases of direct sequence spread spectrum communication technology, and then a kind of DS communication system frame is given. The m-sequence is used as spread spectrum code sequence and the QDPSK is applied as modulation mode, then the signal of system transmitting module is emulated with the VHDL language in the MAX ＋ plus H software desk. The wave of emulation reaches the anticipation.
出处
《广西通信技术》
2009年第2期37-42,共6页
Guangxi Communication Technology
