宽子带多载波系统模型及同步偏差分析

Simulation of wide subband multi-carrier system model and synchronization error analysis

基于时频分析和多载波通信理论,建立了基于脉冲成型滤波的时频局部化宽子带多载波系统仿真模型,对各种同步偏差给系统带来的影响进行了理论分析和性能仿真。仿真结果表明,系统在归一化频偏0.1以内可以得到较为理想的解调性能,所以只要选取合适的宽子带和成型脉冲,可以有效解决多载波对频偏敏感的问题。

Based on time-frequency analysis and multi-carrier communication theory, a time-frequency localized wide subband multi-cartier system simulation model is build, and then we make a theoretical analysis on the effects of synchronization error and simulation. The simulation results show that the system at the normalized frequency offset of O. 1 or less can be more ideal de- modulation performance, So simply select the appropriate bandwidth and pulse shaping can effectively resolve the multi-cartier on the frequency offset sensitive issue.