重庆邮电大学学报(自然科学版)
重慶郵電大學學報(自然科學版)
중경유전대학학보(자연과학판)
JOURNAL OF CHONGQING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS(NATURAL SCIENCE EDITION)
2007年
5期
527-530
,共4页
码分多址%线性迫零接收机%信道估计%噪声消除
碼分多阯%線性迫零接收機%信道估計%譟聲消除
마분다지%선성박령접수궤%신도고계%조성소제
CDMA%linear zero forcing receiver%channel estimation%noise reduction
分析了信道冲激响应估计对线性迫零接收机性能的影响.考虑了一种基于最强径功率和三种基于噪声功率估计的域值方法并且用计算机对比它们的仿真性能.同时,还进行了理论分析.计算机仿真结果和理论分析同时表明通过去除噪声的影响,提高信道冲激响应估计精度,可以提高线性迫零接收机的系统性能.
分析瞭信道遲激響應估計對線性迫零接收機性能的影響.攷慮瞭一種基于最彊徑功率和三種基于譟聲功率估計的域值方法併且用計算機對比它們的倣真性能.同時,還進行瞭理論分析.計算機倣真結果和理論分析同時錶明通過去除譟聲的影響,提高信道遲激響應估計精度,可以提高線性迫零接收機的繫統性能.
분석료신도충격향응고계대선성박령접수궤성능적영향.고필료일충기우최강경공솔화삼충기우조성공솔고계적역치방법병차용계산궤대비타문적방진성능.동시,환진행료이론분석.계산궤방진결과화이론분석동시표명통과거제조성적영향,제고신도충격향응고계정도,가이제고선성박령접수궤적계통성능.
This paper analyzes the effect of channel impulse response estimation on the performance of linear zero forcing receiver. Four noise reduction schemes based on maximum path power and noise power respectively have been considered and the computer simulation results show their performance. At the same time, they are compared to the theoretical derivation. Both simulation and analysis show that by improving the estimation accuracy of channel impulse response, the system performance of the linear zero forcing receiver could be improved.