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Spectrum shaping with a hardware digital filter
G A Studebaker1, R L Sherbecoe, J S Matesich
1Department of Audiology and Speech Pathology, Memphis State University, Tennessee 38152.
Journal of Rehabilitation Research and Development
|January 1, 1987
Summary
Hardware digital filters offer advantages like steep slopes and detailed shaping, enabling real-time signal processing with linear phase response. While requiring some programming skill, they provide capabilities beyond analog systems.
Area of Science:
- Electrical Engineering
- Signal Processing
- Computer Engineering
Background:
- Analog filters have limitations in precision and flexibility.
- Digital filters offer advanced signal processing capabilities.
- Hardware implementations enable real-time performance.
Purpose of the Study:
- To highlight the unique advantages of hardware digital filters.
- To discuss their application in real-time signal processing.
- To detail their design characteristics and performance.
Main Methods:
- Utilizing hardware digital filters for signal processing.
- Designing filters with steep transition bands and detailed passband shaping.
- Implementing linear phase response in hardware filters.
Main Results:
- Hardware digital filters enable real-time signal filtering.
- Achieved steep transition band slopes and precise transfer function shaping.
- Demonstrated linear phase response capabilities.
Conclusions:
- Hardware digital filters provide superior performance for specific applications.
- Their real-time processing and design flexibility surpass analog limitations.
- Despite cost and skill requirements, they offer significant advantages.