Title :
Design of digital differentiator based on maximum signal to noise ratio criterion
Author :
Tseng, Chien-Cheng ; Lee, Su-Ling
Author_Institution :
Dept. of Comput. & Commun. Eng., Nat. Kaohsiung First Univ. of Technol., Taiwan
Abstract :
In this paper, a new approach to design of digital FIR differentiators is presented. The design is based on the maximization of signal to noise ratio at output of the differentiator. The optimal filter coefficients are obtained from the generalized eigenvector associated with the maximum eigenvalue of a pairs of symmetric matrices. The estimation of the velocity sequence of a Chinese signature is used to demonstrate the performance of our method
Keywords :
FIR filters; differentiating circuits; digital filters; interference (signal); matrix algebra; optimisation; signal processing; digital FIR differentiator design; generalized eigenvector; maximum SNR criterion; optimal filter coefficients; signal to noise ratio; symmetric matrices; Biomedical measurements; Colored noise; Finite impulse response filter; Frequency response; Image edge detection; Low-frequency noise; Nonlinear filters; Signal design; Signal to noise ratio; White noise;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921010
