Digital Signal Processing (DSP)
Digital signal processing (DSP) is the field of signal processing that focuses on digital signals.
Signal processing in general may comprise…
- filtering
- enhancement
- transformation (such as Fourier Transformation)
- analysis
- synthesis
- pattern recognition
- compression
- transmission
What is a Signal?
A signal may be a function of
- time (speech signal: amplitude by time)
- location (image signal: color by row n and column m)
- or both (video) or more…
Most signals are either analog (continuous in both time and amplitude) or digital (discrete in time and amplitude).
Resources
- K.D. Kammeyer, K. Kroschel: Digitale Signalverarbeitung, Teubner-Verlag, 2002.
- A.V. Oppenheim, R.W. Schafer, J.R. Buck: Zeitdiskrete Signalverarbeitung, Pearson Studium, 2004.
- H.-W. Schüßler: Digitale Signalverarbeitung 1, Springer-Verlag, 1994
- Song Ho Ahn - Notes on DSP
- D/A and A/D | Digital Show and Tell (Monty Montgomery @ xiph.org)