摘要
文章介绍了扩频通信原理,详细分析了直接序列扩频技术中的m序列扩频,并且简要介绍了基于该技术的电力载波抄表系统的一个解决方案,给出了电力线抄表系统的整体设计及扩频通信单元的设计,着重介绍了低压载波通信芯片中同步系统并分析了同步过程的两个阶段:搜捕阶段和跟踪阶段。
The principle of the spread spectrum communication is introduced and the msequence directsequence modulation is analyzed. A systemlevel solution of the meter reading system based on this technique is proposed and the design of the spread spectrum communication unit of the power line is shown. The synchronization system of the spread spectrum communication chip in this system is discussed in detail and the two synchronizing stages,the searchingcatching stage and the tracking stage, are also analyzed.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
2003年第1期150-153,共4页
Journal of Hefei University of Technology：Natural Science
