摘要
本文基于两径模型，给出了几种常用数字调制方式在频率选择性衰落信道中的误码基底的显式表达，讨论了瑞利衰落与其他衰落分布及相干与非相干两种解调方式的影响，并在此基础上分析了时延扩展、限带滤波器、分集及前向纠错编码的作用。
Based on two ray model, closed form formula for irreducible bit error rate are given by theoretical analyzing the performance of several digital modulations in frequency selective radio channel. The effects of Rayleigh and other fading distribution are discussed with both coherent and non coherent demodulation. This paper also investigates the effects of time delay spread, filters, diversity and forward error coding.
出处
《通信学报》
EI
CSCD
北大核心
1998年第4期2-7,共6页
Journal on Communications
基金
国家自然科学基金
