digital signal processors - meaning and definition. What is digital signal processors
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What (who) is digital signal processors - definition

MATHEMATICAL SIGNAL MANIPULATION BY COMPUTERS
Signal sampling; Digital Signal Processing; Digtial Signal Processor; Native processing; DIGITAL SIGNAL PROCESSING; Digital transform; Applications of digital signal processing
  • An example of the 2D discrete wavelet transform that is used in [[JPEG2000]]. The original image is high-pass filtered, yielding the three large images, each describing local changes in brightness (details) in the original image. It is then low-pass filtered and downscaled, yielding an approximation image; this image is high-pass filtered to produce the three smaller detail images, and low-pass filtered to produce the final approximation image in the upper-left.

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 domain such as time, space, or frequency.
Digital Signal Processing         
(DSP) Computer manipulation of analog signals (commonly sound or image) which have been converted to digital form (sampled). (1994-12-07)
Parallel multidimensional digital signal processing         
  • Figure 1. A completely parallel realization of an M-Dimensional FIR filter.
Parallel Multidimensional Digital Signal Processing
Parallel multidimensional digital signal processing (mD-DSP) is defined as the application of parallel programming and multiprocessing to digital signal processing techniques to process digital signals that have more than a single dimension. The use of mD-DSP is fundamental to many application areas such as digital image and videoKeimel, Christian, Martin Rothbucher, Hao Shen, and Klaus Diepold.

Wikipedia

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 domain such as time, space, or frequency. In digital electronics, a digital signal is represented as a pulse train, which is typically generated by the switching of a transistor.

Digital signal processing and analog signal processing are subfields of signal processing. DSP applications include audio and speech processing, sonar, radar and other sensor array processing, spectral density estimation, statistical signal processing, digital image processing, data compression, video coding, audio coding, image compression, signal processing for telecommunications, control systems, biomedical engineering, and seismology, among others.

DSP can involve linear or nonlinear operations. Nonlinear signal processing is closely related to nonlinear system identification and can be implemented in the time, frequency, and spatio-temporal domains.

The application of digital computation to signal processing allows for many advantages over analog processing in many applications, such as error detection and correction in transmission as well as data compression. Digital signal processing is also fundamental to digital technology, such as digital telecommunication and wireless communications. DSP is applicable to both streaming data and static (stored) data.

Examples of use of digital signal processors
1. A TI spokesman said FRAM could be embedded in TI‘s digital signal processors or microcontrollers.
2. Digital Signal Processors, the major products of Texas Instruments, should enjoy the strongest growth among semiconductors at 17.2 per cent as more are used in phones and a broader range of consumer devices.
3. The company said its growth was driven by semiconductors, up 13 per cent on the previous quarter and a year ago, "with particularly strong demand for digital signal processors and analogue chips used in a variety of communications and entertainment electronics". TI said it had reached new highs for gross margin at 4'.3 per cent and operating margin at 22.7 per cent.
4. No other share will be added to the index in Plastro‘s stead until the next rebalancing date. (TheMarker) Ceva, which makes technologies to plan chips, will be using the ARM corporation‘s CoreSight technology in its digital signal processors, which are used in mobile multimedia devices, cellular phones and electronic entertainment devices. (TheMarker) Nice Systems says that CallSource, a U.S. provider of call tracking, performance evaluation and training services, has bought the Israeli company‘s Interaction Analytics software, which is part of the Nice SmartCenter suite.