计算机工程2017，Vol.43Issue(9)：128-132,5.DOI:10.3969/j.issn.1000-3428.2017.09.023
FMT系统的滤波器组优化设计
Optimization Design of Filter Bank for FMT System
摘要
Abstract
The prototype filter band attenuation of traditional Filtered Multi-tone(FMT) system is not large enough,the transition band width decays slowly,and it causes the system has low performance.In order to slove this proplem,an optimized design method of filter bank based on inter-carrier interference suppression of FMT system is proposed.The subchannel spectrum constraint is improved by optimizing the passband cutoff frequency,the bandwidth of the transition band and the peak of sidelobe of the prototype filter.Simulation results show that the prototype filter designed by this method has smaller transition band and sidelobe peak,and the corresponding FMT system has better subchannel spectrum constraint and bit error rate performance.关键词
滤波多音调制/信道/无线传输/滤波器组/原型滤波器Key words
Filtered Multi-tone (FMT) modulation/information channel/wireless transmission/filter bank/prototype filter分类
信息技术与安全科学引用本文复制引用
马亚希,方晶晶..FMT系统的滤波器组优化设计[J].计算机工程,2017,43(9):128-132,5.基金项目
国家科技重大专项(2016ZX03001010) （2016ZX03001010）
重庆市教育委员会科学技术研究项目(KJ1400437). （KJ1400437）
