An Approximation Algorithm of Fractional Order Pole Models Based on an Optimization Process
This paper proposes a new approximation scheme which is an extension of the well-established Charef′s approximation method. The method relaxes the constraints on the locations of pole-zero pairs of the approximation system, which provides more flexibility and space for approximation system to approach the approximated system as possible. The approximation system based on a optimization process perform not only a good gain fit but a good phase fit. The benefits from using the proposed scheme are illustrated by numerical examples in frequency domains.
Li Meng Dingyu Xue
Faculty of Information Science and Engineering, Northeastern University, Shenyang 110004, China
国际会议
青岛
英文
486-491
2010-07-15(万方平台首次上网日期,不代表论文的发表时间)