摘要
本文介绍了第三代移动通信标准WCDMA(FDD)中基于时分复用的导引符号辅助瑞利衰落信道下的信道估计 .提出了一种新的利用两个连续时隙的导引符号估计出的信道参数进行最小二乘意义下二次曲线内插的信道参数估计方法 .仿真表明本方法能有效地估计出时隙中数据段的信道参数 ,尤其在高速及变速运动情况下 。
Estimation of Rayleigh fading channels using time multiplexed pilot symbols in W CDMA (FDD) is considered.Method of interpolation on a second-order curve using the instantaneous channel estimation of two successive slots based on least squa re method is presented.It is demonstrated by computer simulations that the chann el distortion on data symbols in a slot can be estimated effectively compared to the method using simple linear interpolation,and the performance of the Rake co mbiner is improved especially in fast moving cases.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2000年第7期16-18,共3页
Acta Electronica Sinica
基金
国家杰出青年科学基金!(No .6972 50 0 1 )
关键词
第三代移动通信
WCDMA
信道估计
the third generation mobile communication
WCDMA
Rake rec eiver
least square method
