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2. Signal processing - Wikipedia

   en.wikipedia.org/wiki/Signal_processing

   Signal processing is an electrical engineering subfield that focuses on analyzing, modifying and synthesizing signals, such as sound, images, potential fields, seismic signals, altimetry processing, and scientific measurements. [1] Signal processing techniques are used to optimize transmissions, digital storage efficiency, correcting distorted ...

3. Digital signal processing - Wikipedia

   en.wikipedia.org/wiki/Digital_signal_processing

   Digital signal processing. Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations. The digital signals processed in this manner are a sequence of numbers that represent samples of a continuous variable in a ...

4. Analog signal processing - Wikipedia

   en.wikipedia.org/wiki/Analog_signal_processing

   Analog signal processing. Analog signal processing is a type of signal processing conducted on continuous analog signals by some analog means (as opposed to the discrete digital signal processing where the signal processing is carried out by a digital process). "Analog" indicates something that is mathematically represented as a set of ...

5. Filter (signal processing) - Wikipedia

   en.wikipedia.org/wiki/Filter_(signal_processing)

   In signal processing, a filter is a device or process that removes some unwanted components or features from a signal. Filtering is a class of signal processing, the defining feature of filters being the complete or partial suppression of some aspect of the signal. Most often, this means removing some frequencies or frequency bands.

6. Downsampling (signal processing) - Wikipedia

   en.wikipedia.org/wiki/Downsampling_(signal...

   Downsampling (signal processing) In digital signal processing, downsampling, compression, and decimation are terms associated with the process of resampling in a multi-rate digital signal processing system. Both downsampling and decimation can be synonymous with compression, or they can describe an entire process of bandwidth reduction ...

7. Coherence (signal processing) - Wikipedia

   en.wikipedia.org/wiki/Coherence_(signal_processing)

   Coherence (signal processing) In signal processing, the coherence is a statistic that can be used to examine the relation between two signals or data sets. It is commonly used to estimate the power transfer between input and output of a linear system. If the signals are ergodic, and the system function is linear, it can be used to estimate the ...