摘要
给出了一种适用于 CDMA2 0 0 0 1 x系统的信干比估算方法——基于信号统计特性的 SIR估算方法。利用给出的系统模型 ,采用计算接收机输出端判决统计量均值和方差的方法 ,最终可以估算出接收机输出端的 SIR。通过计算机仿真 ,给出了该算法估算信干比的结果及采用该算法的 CDMA2 0 0 0 1 x系统闭环功率控制的性能曲线 ,证明了该算法在 CDMA2 0 0 0 1 x系统中的有效性。
In the paper, an approach of SIR estimation for CDMA2000 1x system is introduced. The algorithm is based on the statistics characteristic of the signal. With a sample and common system model, the deciding value of the receiver output is counted firstly, then the mean and variance of the deciding value are calculated. So, the SIR of the receiver outputs is estimated. further more some results of SIR estimation and the performance of closed loop power control by the computer simulation are presented. Finally the availability of the SIR algorithm in the CDMA2000 1x system is proved.
出处
《解放军理工大学学报（自然科学版）》
EI
2003年第3期26-29,共4页
Journal of PLA University of Science and Technology(Natural Science Edition)
