基于滤波器组的单载波频域均衡技术研究

研究了基于滤波器组的单载波频域均衡技术的基本原理和实现方法,通过系统对比基于滤波器组的方法与基于FFT方法的异同之处,从其产生的机理上阐明了基于滤波器组的单载波频域均衡技术能够克服FFT方式的主要缺点的原因。基于滤波器组的均衡技术既有效地抑制频率选择性衰落、避免循环前缀带来的信道开销,又具有良好的带外抑制能力和抗窄带干扰的性能,实现了信号的完全重构,仿真结果进一步验证了理论分析的正确性。

Study of Single Carrier Frequency Domain Equalization Based on Filter Banks

In this paper we study the basic principle and implementation method of he single-carrier frequency domain equalization technology(SC-FDE).Through the comparison between the two methods,it is illustrated why the SC-FDE based on filter banks can effectively overcome the main defects built in the method based on FFT.The SC-FDE technology based on filter banks can not only effectively restrain the frequency-selective fading and avoid the channel overheads brought from cyclic prefix,but also has the ability of outband rejection and the performance of Narrowband Interference resistance,so the signal can be reconstructed perfectly.The simulation results will verify the correctness of theoretical analysis further.