基于ML信道估计算法的超宽带Rake接收机研究

The Studies of UWB Receiver Based on ML Arithmetic

研究了存在码间干扰的TH-BPSK-UWB系统中,采用ML信道估计算法的MMSE-Rake接收机的系统性能。仿真结果表明ML算法在多径信道环境下,采用较短的训练序列仍能有效的估计出Rake接收机的参数获得较好的系统性能,且MMSE-Rake比MRC-Rake在ISI环境中更能体现出其优势。

The performance of the Rake receiver based on ML channel estimation arithmetic is studied in the TH-BPSK-UWB system with ISI. The results show that the ML arithmetic can estimate the channel parameters basically which makes the system obtain good performance in the multipath environment. Furthermore, the MMSE-Rake has superiority performance to the MRC-Rake receiver in the ISI condition.