Title :
Design of digital differentiators for low frequencies
Author :
Kumar, B. ; Roy, S. C Dutta
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., New Delhi, India
fDate :
3/1/1988 12:00:00 AM
Abstract :
Optimal, maximally accurate digital differentiators (DDS) are derived for the low-frequency range. Exact coefficients used in the proposed DDs can be readily computed from explicit formulas, whereas the optimal (minimas RE) DDs require and optimization program to derive the coefficients. The lower the frequency of differentiation, the better is the performance of the proposed differentiators, making them suitable for many typical applications
Keywords :
differentiating circuits; digital differentiators; explicit formulas; low-frequency range; maximally accurate; optimization program; Digital images; Frequency; Hardware; Head; Image processing; Inspection; Minimax techniques; Pattern recognition; Pipelines; Transistors;
Journal_Title :
Proceedings of the IEEE
