| 基于CSD编码遗传算法的FIR滤波器优化设计 |
| |
| 引用本文： | 程军,赵海龙,陈贵灿.基于CSD编码遗传算法的FIR滤波器优化设计[J].电路与系统学报,2009,14(5). |
| |
| 作者姓名： | 程军 赵海龙 陈贵灿 |
| |
| 作者单位： | 西安交通大学,微电子研究所,陕西,西安,710049 |
| |
| 摘 要： | 本文主要研究了采用CSD(canonic signed digit)编码的遗传算法对FIR(Finite Impulse Response)滤波器系数进行的有限精度优化,并对传统的CSD编码方法进行了改进,使之能够更快地收敛到最优解.针对CSD编码经过交叉、变异后可能出现的问题,提出了解码替代的解决方法.在级联滤波器的设计中,采用了波纹互相抵消技术使设计的级联滤波器通带内纹波大大降低.
|
| 关 键 词： | CSD编码 FIR滤波器 遗传算法 |
Optimal design of FIR filter base on CSD encoding genetic algorithm |
| |
| CHENG Jun,ZHAO Hai-long,CHEN Gui-can.Optimal design of FIR filter base on CSD encoding genetic algorithm[J].Journal of Circuits and Systems,2009,14(5). |
| |
| Authors: | CHENG Jun ZHAO Hai-long CHEN Gui-can |
| |
| Affiliation: | CHENG Jun,ZHAO Hai-long,CHEN Gui-can(Institute of Microelectronics,Xi'an Jiaotong University,Xi'an 710049,China) |
| |
| Abstract: | This paper is concerned with the development of a new technique for the optimization of FIR digital filters over the CSD coefficient space based on genetic algorithms.The algorithm will converge faster while use the new CSD encoding method presented in this paper.A novel approach is presented for the restoration of CSD numbers to their correct format after the application of crossover and mutation operations in genetic algorithms.The ripple in the passband can be reduced significantly while this technique i... |
| |
| Keywords: | CSD encoding FIR filter genetic algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
