山西大同大学学报（自然科学版）
山西大同大學學報（自然科學版）
산서대동대학학보（자연과학판）
JOURNAL OF SHANXI DATONG UNIVERSITY(NATURAL SCIENCE EDITION)
2014年
5期
70-73
,共4页
扩频通信%多径衰落%误码特性%仿真
擴頻通信%多徑衰落%誤碼特性%倣真
확빈통신%다경쇠락%오마특성%방진
spread spectrum communication%multipath decline%bit error peculiarity%simulation
文章通过扩频通信技术有关性能分析和仿真，得出了扩频通信对多径干扰具有很强的抑制能力，可以有效地解决限定空间内移动通信质量急剧下降问题。
文章通過擴頻通信技術有關性能分析和倣真，得齣瞭擴頻通信對多徑榦擾具有很彊的抑製能力，可以有效地解決限定空間內移動通信質量急劇下降問題。
문장통과확빈통신기술유관성능분석화방진，득출료확빈통신대다경간우구유흔강적억제능력，가이유효지해결한정공간내이동통신질량급극하강문제。
The multipath decline is severe in limited space (such as in tunnel, in laneway and in building), so the quality of mobile communication in it drops sharply. The ability of spread spectrum communication technique to resist multipath decline is studied, the expression of SNR and BER of the system using spread spectrum communication technique is educed, a bit error curve of simulation with a rectangle tunnel model is got and the simulating result demonstrates that the performance of the system to resist multipath decline is improved awfully.
