Issues in the Design of Equiripple FIR Higher Order Digital Differentiators using Weighted Least Squares Technique

被引：0
|
作者：
Sondur, V. V. [1 ]
Sondur, V. B. [1 ]
Rao, D. H. [1 ]
Latte, M. V. [2 ]
Ayachit, N. H. [2 ]
机构：
[1] Gogte Inst Technol, Belgaum 590008, India
[2] SDM Coll Engn & Technol, Dharwad 580002, Karnataka, India
来源：
ICSPC: 2007 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATIONS, VOLS 1-3, PROCEEDINGS | 2007年
关键词：
Digital differentiators; equiripple; mean square error; weighted least square design;
D O I：
暂无
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Weighted least square method proposed by S. Sunder and V.Ramachandran for the design of a digital differentiator is studied and implemented for an odd length differentiator of single and higher order. The response of the differentiator, variation of mean square error, and normalized difference of envelop function are studied for different iterations. Issues related to convergence of the WLS method are discussed. It is observed that the number of samples used while implementing the WLS algorithm has a significant influence on the results. A low value of the number of samples increases the tendency of the algorithm to converge towards a solution. However, the estimate of the error in the solution is misleading as the actual error in such cases is more than the estimated value.
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页码：189 / +
页数：2
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