A delta modulation filter for speech-type signals
Abstract
This paper considers the realization of an all-digital system for direct filtering of a delta modulation (DM) encoded signal. It is shown (1) that this system can be realized fairly easily for any type of filter function when the signals are encoded with a linear DM. The problem of digitally filtering an adaptive DM (ADM) encoded signal is considered. In addition, a circuit realization that does not require complex digital hardware is outlined. Performance has been tested via simulation on a digital computer, using a variety of test signals; both temporal and spectral results are presented.
- Publication:
-
IEEE Transactions on Communications
- Pub Date:
- June 1980
- Bibcode:
- 1980ITCom..28..801P
- Keywords:
-
- Computerized Simulation;
- Delta Modulation;
- Digital Filters;
- Signal Encoding;
- Transmission Efficiency;
- Voice Communication;
- Adaptive Control;
- Network Synthesis;
- Performance Prediction;
- Performance Tests;
- Speech;
- Communications and Radar