Design of FIR digital filters using tapped cascaded FIR Subfilters
Abstract
This paper considers the design of an FIR digital filter by interconnecting a number of identical FIR subfilters with the aid of a few additional multipliers and adders. The overall structure is in the form of a tapped cascaded FIR subfilters. A composite method to determine the tapping coefficients along with the coefficients of the subfilter to approximate overall frequency response characteristic is proposed. Several numerical examples illustrating the proposed method are included.
- Publication:
-
Circuits Systems and Signal Processing
- Pub Date:
- March 1982
- DOI:
- 10.1007/BF01600033
- Bibcode:
- 1982CSSP....1...43N
- Keywords:
-
- Bandpass Filters;
- Design Analysis;
- Fir Filters;
- Numerical Analysis;
- Frequency Response;
- Least Squares Method;
- Transfer Functions;
- Electronics and Electrical Engineering;
- Frequency Response;
- Response Characteristic;
- Digital Filter;
- Frequency Response Characteristic;
- Composite Method