| 基于QPSO优化算法的余弦调制滤波器组设计 |
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| 引用本文： | 谭方青,张天骐,高春霞,黄烈超.基于QPSO优化算法的余弦调制滤波器组设计[J].电视技术,2011,35(19):34-39,53. |
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| 作者姓名： | 谭方青 张天骐 高春霞 黄烈超 |
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| 作者单位： | 重庆邮电大学信号与信息处理重庆市重点实验室,重庆,400065 |
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| 基金项目： | 国家自然科学基金项目(61071196),国家自然科学基金-中物院NSAF联合基金项目(10776040); 教育部新世纪优秀人才支持计划(NCET-10-0927); 信号与信息处理重庆市市级重点实验室建设项目(CSTC,2009CA2003); 重庆市自然科学基金项目(CSTC,2009BB2287;CSTC,2010BB2398;CSTC,2010BB2411) |
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| 摘 要： | 提出了一种新的余弦调制滤波器组设计方法,此方法以原型滤波器的阻带衰减作为目标函数,用改进型量子粒子群算法(QPSO)设计最接近满足重构条件的原型低通滤波器,然后在此基础上通过余弦调制得到分析滤波器组和综合滤波器组.实验仿真结果表明,用此方法设计的余弦调制滤波器组(CMFB)具有良好的阻带衰减特性和精确重构性能,在满足性...
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| 关 键 词： | 余弦调制滤波器组 量子粒子群算法 FIR低通滤波器 高阻带衰减 精确重构性能 |
Cosine-Modulated Filter Banks Design Based on Quantum-behaved Particle Swarm Optimization Algorithm |
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| TAN Fangqing,ZHANG Tianqi,GAO Chunxia,HUANG Liechao.Cosine-Modulated Filter Banks Design Based on Quantum-behaved Particle Swarm Optimization Algorithm[J].Tv Engineering,2011,35(19):34-39,53. |
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| Authors: | TAN Fangqing ZHANG Tianqi GAO Chunxia HUANG Liechao |
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| Affiliation: | TAN Fangqing,ZHANG Tianqi,GAO Chunxia,HUANG Liechao(Chongqing Key Laboratory of Signal and Information Processing(CQKLS&IP),Chongqing University of Posts and Telecommunications(CQUPT),Chongqing 400065,China) |
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| Abstract: | A new design method of Cosine-Modulated Filter Banks(CMFB) is proposed,which takes the prototype filter's stopband attenuation as a target function to design the prototype low-pass filter which can satisfy most nearly perfect reconstruction condition using improved PSO-QPSO.Then,the analysis and synthesis filter banks by cosine-modulation are got.The simulation results demonstrate that CMFB designed by the proposed method has good stop-band attenuation characteristics and perfect reconstruction property,and... |
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| Keywords: | CMFB QPSO FIR low-pass filter high stop-band attenuation PR property |
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