第三代移动通信多用户检测中的信道估计

Channel Estimation of Multiuser Detection in the 3rd Generation Mobile Communication

在介绍了第三代移动系统离散时间基带传输模型的基础上 ,介绍了 3种实现多用户信道估计的方法 ,即子空间法 ,导引信道估计法和迭代判决法。通过对信道仿真 ,得到 3种方法的无线信道响应标准差 ;最后对 3种方法的性能进行分析和比较。

The authors first introduce the baseband transmission model of the 3rd generation mobile communication system in the paper. then, propose and compare several algorithms for channel estimation of a synchronous CDMA system, namely, subspace approach, pilot aided channel estimation, and Decision Iterative approach and obtain radio channel pulse respond standard deviation by simulation, finally, analyze the performance of channel estimation method.