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Everything about Downsampling (signal processing)
Resampling method
In digital signal processing, downsampling, subsampling, 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 (filtering) and sample-rate reduction. When the process is performed on a sequence of samples of a signal or a continuous function, it produces an approximation of the sequence that would have been obtained by sampling the signal at a lower rate. Wikipedia →
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- Read the overview: Downsampling (signal processing)A 5-minute orientation
- Pick up a classic book: Hierarchical Neural Network Structures for Phoneme RecognitionThe most-reprinted book on the subject
- Go sideways: UpsamplingA closely related topic
- Go sideways: Filter bankA closely related topic
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đź“š Books worth reading
Hierarchical Neural Network Structures for Phoneme RecognitionDaniel Vasquez · 2012
Analysis of oriented textureFábio José Ayres · 2011
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đź”— Related topics
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- Multirate filter bank and multidimensional directional filter banks This article provides a short survey of the concepts, principles and applications of Multirate filter banks and Multidimensional Directional filter banks…
- Zero-order hold The zero-order hold (ZOH) is a mathematical model of the practical signal reconstruction done by a conventional digital-to-analog converter (DAC). That…
- Undersampling In signal processing, undersampling or bandpass sampling is a technique where one samples a bandpass-filtered signal at a sample rate below its Nyquist…
- Bandlimiting Bandlimiting is the process of reducing a signal’s energy outside a specific frequency range, keeping only the desired part of the signal’s spectrum. This…
- Discrete wavelet transform In numerical analysis and functional analysis, a discrete wavelet transform (DWT) is any wavelet transform for which the wavelets are discretely sampled…
- Multidimensional transform In mathematical analysis and applications, multidimensional transforms are used to analyze the frequency content of signals in a domain of two or more…