摘要
针对采用码片率采样的直接序列扩频BPSK超宽带系统离散信道,利用集合论的知识,对UWB信道估计问题进行建模,提出一种基于OBE算法的超宽带信道估计算法。并分析了采用不同的扩频码对估计出的信道均方误差的影响。仿真表明,即使在信道的长度未知的情况下,在给定的维数空间中,仍然能很好的估计出信道抽头值。
Aim at the chip-rate discrete channel of the DS-BPSK Ultra Wide-Band communications, the set theory was used to model the question of channel estimation for UWB system, a algorithm which based on OBE was proposed. Furthermore, analyzed the effect which used different spreading sequences of the MSE Simulation results demonstrated that the channel taps could be well estimated in the space of determinate dimensions even if the number of the taps were unknown.
出处
《信息通信》
2008年第6期17-19,共3页
Information & Communications
基金
国家自然科学基金资助项目(No.60672157)
