摘要
多普勒散布及多径展宽等时频特性会使高频数据通信系的的误码率产生一个不可减小的误码率,根据短波授时自动收测系统和多次包络法测多普勒展宽和多径展宽的测量结果,本文重点讨论二者的时频特性及其对数据通信系统性能的影响。
The time-frequency characteristics the HF channel such as Doppler and multipath spread cause an irreducible error probability in digital radio system. Using the auto-receiving measuring system of the short wave time frequency service signal and envelope method, the Doppler and Maltipath spread is measured. In term of the measured resules, the time-frequency characteristics of the two parameters and their influence on the performances of the digital communication systems are emphatically discussed here.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1992年第2期141-146,共6页
Journal of University of Electronic Science and Technology of China
基金
机电部"七五"预研基金
关键词
高频信道
数据通信系统
时频
信道
HF channel
digital communication systems
Doppler spread
multipath spread
time-frequency chracterictics
