电讯技术2018，Vol.58Issue(3)：350-355,6.DOI:10.3969/j.issn.1001-893x.2018.03.019
一种高性能内插滤波器的设计
Design of a High Performance Interpolation Filter
吴明钦1
作者信息
- 1. 中国西南电子技术研究所,成都610036
- 折叠
摘要
Abstract
The performances of traditional interpolation filters cannot meet the requirements with the devel-opment of high order modulation and demodulation technology in all digital receivers.Thus,a method for designing a high performance interpolation filter is proposed by researching the frequency responses of poly-nomial functions.This design is based on approximation in the frequency domain response.It is more flexi-ble especially by using linear weighting Minimum Mean Square Error(MMSE) algorithm and optimization iterating under linear constraints by using Matlab own function.Simulation results show that the perform-ances of interpolation filters designed by this approach are better than those of filters designed by traditional methods.It is particularly well suitable for the high order Quadrature Amplitude Modulation(QAM) signal.关键词
全数字接收机/高阶正交幅度调制信号/内插滤波器/多项式插值/频域逼近Key words
all digital receiver/high order QAM signal/interpolation filter/polynomial interpolation/fre-quency domain approximation分类
信息技术与安全科学引用本文复制引用
吴明钦..一种高性能内插滤波器的设计[J].电讯技术,2018,58(3):350-355,6.
