Signal Processing
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Signal processing is the analysis, interpretation and manipulation of signal (information theory)s. Signals of interest include audio signal processing, image processing, biological signals such as ECG, radar signals, and many others. Processing of such signals includes storage and reconstruction, separation of information from noise (e.g., aircraft identification by radar), data compression (e.g., image compression), and feature extraction (e.g., speech-to-text conversion).
Signal classification Signal (information theory) can be either analog or digital, and may come from various sources.
There are various sorts of signal processing, depending on the nature of the signal, as in the following examples.
For analog signals, signal processing may involve the amplification and filtering of audio signals for audio equipment or the modulation and demodulation of signals for telecommunications. For digital signals, signal processing may involve the compression, error checking and error detection of digital signals.
- Analog signal processing—for signals that have not been digitized, as in classical radio, telephone, radar, and television systems
- Digital signal processing—for signals that have been digitized. Processing is done by digital circuits such as Application-specific integrated circuits, FPGAs, general-purpose microprocessors or computers, or specialized digital signal processor chips.
- Statistical signal processing—analyzing and extracting information from signals based on their statistical properties
- Audio signal processing—for electrical signals representing sound, such as music
- Speech signal processing—for processing and interpreting spoken words
- Image processing—in digital cameras, computers, and various imaging systems
- Video signal processing—for interpreting moving pictures
- Array processing—for processing signals from arrays of sensors
Topics in signal processing
- Sampling (signal processing)
- Quantization (signal processing)
- LTI system theory
- Fourier transform
- Wavelet transform
See also
- Signal (electrical engineering)
- Data acquisition
Signal Processing - Elsevier
An International Journal A publication of the European Association for Signal Processing (EURASIP) Editor-in-Chief: B. Ottersten See editorial board for all editors information
Digital Signal Processing Tutorial
An outline of the basic principles of DSP (Digital Signal Processing), including tutorials and Java applets illustrating DSP techniques
Signal processing - Wikipedia, the free encyclopedia
Signal processing is the analysis, interpretation, and manipulation of signals. Signals of interest include sound, images, biological signals such as ECG, radar signals, and many ...
SPL home
The University of Reading and departmental websites ... University of Reading Home > SPL Home. The Signal Processing Laboratory (SPL) was established in August 1998 by Sherratt and ...
Signal Processing and Multimedia Communications
Signal Processing and Multimedia Communications. Research in our Group is primarily concerned with the development of novel signal / information processing methods and their ...
Signal Processing and Multimedia Communications (SPMC) - SoCCE - UoP
Overview. Research at the Signal Processing and Multimedia Communication (SPMC) research group is primarily concerned with the development of novel signal ...
Signal Processing Toolbox - MATLAB
Signal Processing Toolbox is a collection of MATLAB tools for analog and digital signal processing (DSP). Signal Processing Toolbox also provides graphical user interfaces for ...
Digital Signal Processing from FOLDOC
Digital Signal Processing (DSP) Computer manipulation of analog signals (commonly sound or image) which have been converted to digital form (sampled).
Signal and Image Processing Research Group
Signal and Image Processing Research Group ... c] The Signal and Image Processing Group (improc) at Warwick was founded by Professor Roland Wilson in mid 1980s.
Advanced Signal Processing Research Group
The Systems and Control Group at Loughborough University specialises in a variety of practically-focussed issues related to applications of advanced control.