In digital filtering, The function of a filter is removing the unwanted part of the signal, such as random noise or extract useful part of the signal such as a component lying within a certain frequency range. This article gives information about the application of a digital filter to know more advance application in Filtering in details.
1. Simulation/modeling
- Simulating communication channels
- Modeling the human auditory system
2. Bandwidth limiting
- Anti-aliasing filters for sampling
- Ensuring that a transmitted signal occupies only its allotted frequency band
3. Noise suppression
- Imaging devices
- Bio-signals like heart, the brain response
4. Image processing
- Image processing application
- Enhancement of selected frequency ranges
5. Signal processing
- Speech synthesis
- Geophysical signal
- Processing of seismic
- Equalizers for audio signals
- The audio system such as CD/DVD players
- Removing the DC component of a signal
6. Special operation
- Differentiation
- Integration
- Hibert transform