On low-roundoff noise and low-sensitivity digital filter structures
Abstract
This note presents a simple alternative form for the error-feedback digital filter structure, which with some minor modification of assumptions, can also represent the low-sensitivity and low-noise structures of Agarwal and Burrus. This form can thus explain why the Agarwal-Burrus structures have low-roundoff noise and can be shown to have low sensitivity. Finally, this form is generalized to define a new class of low-noise and low-sensitivity realization structures for digital filters.
- Publication:
-
IEEE Transactions on Acoustics Speech and Signal Processing
- Pub Date:
- October 1981
- Bibcode:
- 1981ITASS..29.1077C
- Keywords:
-
- Digital Filters;
- Feedback Circuits;
- Low Noise;
- Network Analysis;
- Network Synthesis;
- Truncation Errors;
- Double Precision Arithmetic;
- Equivalent Circuits;
- Noise Reduction;
- Sensitivity;
- Electronics and Electrical Engineering