基于MATLAB的约束最小二乘法FIR数字滤波器设计.pdf

ARTIFICIALINTELLIGENCEANDIDENTIFICATION 人工智能及识别技术 TECHNIQUES 杜林 (广东肇庆广播电视大学，肇庆526060) 摘要：在数字信号处理领域中，无限脉冲响应数字滤波器(IIR)和有限脉冲响应数字滤波器(FIR)占有极其 重要的地位。但是，IIR数字滤波器存在诸如稳定性难以保障以及相位的非线性等一些固有缺点，这使得具有线性 相位等优点的FIR数字滤波器得到很好的发展。本文介绍基于MATLAB的约束最小二乘法FIR数字滤波器设计。 滤波器设计器及其应用。 SPTooL 关键词：约束最小二乘法；线性冲击响应数字滤波器；MATLAB FIRfilter ConstrainedLeast on design丽tll MAⅡAB Lin DU of (GuangdongZhaoqing BroadcasL526060) Academy Zhaoqing FilterandFinite Filtertakean 【Abstract】InfiniteResponse(IIR)Digital Response(FIR)Digital Impulse Impulse important in theinherent inIIR filtersuchasdifficultto signal disadvantagesdigital safeguardstability partdigital processing．Given andnonlinear filterhasbeen onan scalewhichembodieslinear and phase，FIRdigital developingunprecedented phase on FIRfilter withConstrainedLeast isdescribedinthis includes othermerits．BasisMATLABa design Squam paper．It theoriesaboutConstrainedLeast andtheFIRfilter withthecodesofMATLAB．nis Square design’Sprinciplesalong paper alsointroducestheSPTooLFilter ofMATLAB船wellasits whichisusedto FIR filter． designer application designdigital Least words】Constrained Filter；,MATLABsPI’ooL 【Key Square(CI固；FiniteImpulseResponse(FIR)Digi