摘要
介绍了扩频通信中数据编码和译码新技术的实现方法及电路组成,重点介绍了DPSK(微分相移键控)、MSK(最小移位键控)、LSI(大规模集成)相关器及CCD(电荷耦合器件)可编程匹配器。通常在组成一个扩频通信系统网络时,遇到的最大难题是如何使硬件技术与信号处理算法相匹配,如何节省频率而且能达到最大的系统容量,另外,还存在高可靠性和低功耗等技术关键问题。
A few data coding-decoding methods developped recently are reviewed with emphasis on DPSK,MSK,LSI correlator and CCD programable matched filter in spread-spectrum circuits.Some approaches which are typically the key techniques in constructing a spread-spectrum communication network, such as to implement DSP with minimized hardware efficiently, to get more system capacity with a reasonable bandwidth, and to make trade-off between higher reliability and lower power consumption, are recommended.
出处
《北方交通大学学报》
CSCD
北大核心
1995年第4期468-472,共5页
Journal of Northern Jiaotong University
关键词
扩频通信
移位键控
相关器
ss: spread-spectrum communication
shift keyer
correlator