114 relations: Adaptive filter, Algorithm, Amplifier, Analog signal processing, Analog-to-digital converter, Application-specific integrated circuit, Audio crossover, Audio signal processing, Automation, Bilinear transform, Biomedical engineering, Biomedicine, Block diagram, Cepstrum, Computer engineering, Computer graphics, Computer science, Continuous or discrete variable, Control system, Convolution, CT scan, Data compression, Data transmission, Dataflow programming, Digital data, Digital filter, Digital image processing, Digital photography, Digital room correction, Digital signal controller, Digital signal processor, Digital synthesizer, Digital-to-analog converter, Discrete Fourier transform, Discrete time and continuous time, Discrete wavelet transform, Discrete-time Fourier transform, Discretization, Economic forecasting, Electric guitar, Electrical engineering, Equalization (audio), Error detection and correction, Fast Fourier transform, Field-programmable gate array, Film, Filter design, Financial signal processing, Finite impulse response, Fourier analysis, ..., Fourier transform, Freescale Semiconductor, Frequency domain, Functional analysis, Goertzel algorithm, High fidelity, Impulse response, Industrial processes, Infinite impulse response, Information theory, James H. McClellan, Laplace transform, Linear map, Linear time-invariant theory, Loudspeaker, Machine learning, Magnetic resonance imaging, Medical imaging, Microprocessor, Minimum phase, Mobile phone, Motorola 56000, MP3, N. Ahmed, Nonlinear system, Nonlinear system identification, Numerical analysis, Nyquist frequency, Nyquist–Shannon sampling theorem, Photo manipulation, Quantization (signal processing), Radar, Real number, Real-time computing, Recurrence relation, Ronald W. Schafer, S-plane, Sampling (signal processing), Seismology, Sensor array, Signal processing, Sinc filter, Sonar, Sound reinforcement system, Spectral density estimation, Speech coding, Speech processing, Speech recognition, Statistical signal processing, Step response, Stream processing, Stream Processors, Inc, Super Harvard Architecture Single-Chip Computer, Superposition principle, Telecommunication, Texas Instruments TMS320, Time domain, Time series, Transfer function, Wavelet, Wavelet transform, Weather forecasting, Z-transform, Zeros and poles. Expand index (64 more) » « Shrink index
An adaptive filter is a system with a linear filter that has a transfer function controlled by variable parameters and a means to adjust those parameters according to an optimization algorithm.
In mathematics and computer science, an algorithm is an unambiguous specification of how to solve a class of problems.
An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the power of a signal (a time-varying voltage or current).
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).
In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal.
An Application-Specific Integrated Circuit (ASIC), is an integrated circuit (IC) customized for a particular use, rather than intended for general-purpose use.
Audio crossovers are a type of electronic filter circuitry used in a range of audio applications, to split up an audio signal into two or more frequency ranges, so that the signals can be sent to drivers that are designed for different frequency ranges.
Audio signal processing or audio processing is the intentional alteration of audio signals often through an audio effect or effects unit.
Automation is the technology by which a process or procedure is performed without human assistance.
The bilinear transform (also known as Tustin's method) is used in digital signal processing and discrete-time control theory to transform continuous-time system representations to discrete-time and vice versa.
Biomedical engineering (BME) is the application of engineering principles and design concepts to medicine and biology for healthcare purposes (e.g. diagnostic or therapeutic).
Biomedicine (i.e. medical biology) is a branch of medical science that applies biological and physiological principles to clinical practice.
A block diagram is a diagram of a system in which the principal parts or functions are represented by blocks connected by lines that show the relationships of the blocks.
A cepstrum is the result of taking the inverse Fourier transform (IFT) of the logarithm of the estimated spectrum of a signal.
Computer engineering is a discipline that integrates several fields of computer science and electronics engineering required to develop computer hardware and software.
Computer graphics are pictures and films created using computers.
Computer science deals with the theoretical foundations of information and computation, together with practical techniques for the implementation and application of these foundations.
In mathematics, a variable may be continuous or discrete.
A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops.
In mathematics (and, in particular, functional analysis) convolution is a mathematical operation on two functions (f and g) to produce a third function, that is typically viewed as a modified version of one of the original functions, giving the integral of the pointwise multiplication of the two functions as a function of the amount that one of the original functions is translated.
A CT scan, also known as computed tomography scan, makes use of computer-processed combinations of many X-ray measurements taken from different angles to produce cross-sectional (tomographic) images (virtual "slices") of specific areas of a scanned object, allowing the user to see inside the object without cutting.
In signal processing, data compression, source coding, or bit-rate reduction involves encoding information using fewer bits than the original representation.
Data transmission (also data communication or digital communications) is the transfer of data (a digital bitstream or a digitized analog signal) over a point-to-point or point-to-multipoint communication channel.
In computer programming, dataflow programming is a programming paradigm that models a program as a directed graph of the data flowing between operations, thus implementing dataflow principles and architecture.
Digital data, in information theory and information systems, is the discrete, discontinuous representation of information or works.
In signal processing, a digital filter is a system that performs mathematical operations on a sampled, discrete-time signal to reduce or enhance certain aspects of that signal.
In computer science, Digital image processing is the use of computer algorithms to perform image processing on digital images.
Digital photography is a form of photography that uses cameras containing arrays of electronic photodetectors to capture images focused by a lens, as opposed to an exposure on photographic film.
Digital room correction (or DRC) is a process in the field of acoustics where digital filters designed to ameliorate unfavorable effects of a room's acoustics are applied to the input of a sound reproduction system.
A digital signal controller (DSC) is a hybrid of microcontrollers and digital signal processors (DSPs).
A digital signal processor (DSP) is a specialized microprocessor (or a SIP block), with its architecture optimized for the operational needs of digital signal processing.
A digital synthesizer is a synthesizer that uses digital signal processing (DSP) techniques to make musical sounds.
In electronics, a digital-to-analog converter (DAC, D/A, D2A, or D-to-A) is a system that converts a digital signal into an analog signal.
In mathematics, the discrete Fourier transform (DFT) converts a finite sequence of equally-spaced samples of a function into a same-length sequence of equally-spaced samples of the discrete-time Fourier transform (DTFT), which is a complex-valued function of frequency.
In mathematics and in particular mathematical dynamics, discrete time and continuous time are two alternative frameworks within which to model variables that evolve over time.
In numerical analysis and functional analysis, a discrete wavelet transform (DWT) is any wavelet transform for which the wavelets are discretely sampled.
In mathematics, the discrete-time Fourier transform (DTFT) is a form of Fourier analysis that is applicable to the uniformly-spaced samples of a continuous function.
In mathematics, discretization is the process of transferring continuous functions, models, variables, and equations into discrete counterparts.
Economic forecasting is the process of making predictions about the economy.
An electric guitar is a guitar that uses one or more pickups to convert the vibration of its strings into electrical signals.
Electrical engineering is a professional engineering discipline that generally deals with the study and application of electricity, electronics, and electromagnetism.
Equalization or equalisation is the process of adjusting the balance between frequency components within an electronic signal.
In information theory and coding theory with applications in computer science and telecommunication, error detection and correction or error control are techniques that enable reliable delivery of digital data over unreliable communication channels.
A fast Fourier transform (FFT) is an algorithm that samples a signal over a period of time (or space) and divides it into its frequency components.
A field-programmable gate array (FPGA) is an integrated circuit designed to be configured by a customer or a designer after manufacturing hence "field-programmable".
A film, also called a movie, motion picture, moving pícture, theatrical film, or photoplay, is a series of still images that, when shown on a screen, create the illusion of moving images.
Filter design is the process of designing a signal processing filter that satisfies a set of requirements, some of which are contradictory.
Financial signal processing is a branch of signal processing technologies which applies to financial signals.
In signal processing, a finite impulse response (FIR) filter is a filter whose impulse response (or response to any finite length input) is of finite duration, because it settles to zero in finite time.
In mathematics, Fourier analysis is the study of the way general functions may be represented or approximated by sums of simpler trigonometric functions.
The Fourier transform (FT) decomposes a function of time (a signal) into the frequencies that make it up, in a way similar to how a musical chord can be expressed as the frequencies (or pitches) of its constituent notes.
Freescale Semiconductor, Inc. was an American multinational corporation headquartered in Austin, Texas, with design, research and development, manufacturing and sales operations in more than 75 locations in 19 countries.
In electronics, control systems engineering, and statistics, the frequency domain refers to the analysis of mathematical functions or signals with respect to frequency, rather than time.
Functional analysis is a branch of mathematical analysis, the core of which is formed by the study of vector spaces endowed with some kind of limit-related structure (e.g. inner product, norm, topology, etc.) and the linear functions defined on these spaces and respecting these structures in a suitable sense.
The Goertzel algorithm is a technique in digital signal processing (DSP) that provides a means for efficient evaluation of individual terms of the discrete Fourier transform (DFT), thus making it useful in certain practical applications, such as recognition of DTMF tones produced by the buttons pushed on a telephone keypad.
High fidelity (often shortened to hi-fi or hifi) is a term used by listeners, audiophiles and home audio enthusiasts to refer to high-quality reproduction of sound.
In signal processing, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse.
Industrial processes are procedures involving chemical, physical, electrical or mechanical steps to aid in the manufacturing of an item or items, usually carried out on a very large scale.
Infinite impulse response (IIR) is a property applying to many linear time-invariant systems.
Information theory studies the quantification, storage, and communication of information.
James H. McClellan is the Byers Professor of Signal Processing at the Georgia Institute of Technology.
In mathematics, the Laplace transform is an integral transform named after its discoverer Pierre-Simon Laplace.
In mathematics, a linear map (also called a linear mapping, linear transformation or, in some contexts, linear function) is a mapping between two modules (including vector spaces) that preserves (in the sense defined below) the operations of addition and scalar multiplication.
Linear time-invariant theory, commonly known as LTI system theory, comes from applied mathematics and has direct applications in NMR spectroscopy, seismology, circuits, signal processing, control theory, and other technical areas.
A loudspeaker (or loud-speaker or speaker) is an electroacoustic transducer; which converts an electrical audio signal into a corresponding sound.
Machine learning is a subset of artificial intelligence in the field of computer science that often uses statistical techniques to give computers the ability to "learn" (i.e., progressively improve performance on a specific task) with data, without being explicitly programmed.
Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body in both health and disease.
Medical imaging is the technique and process of creating visual representations of the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues (physiology).
A microprocessor is a computer processor that incorporates the functions of a central processing unit on a single integrated circuit (IC), or at most a few integrated circuits.
In control theory and signal processing, a linear, time-invariant system is said to be minimum-phase if the system and its inverse are causal and stable.
A mobile phone, known as a cell phone in North America, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area.
The Motorola DSP56000 (also known as 56K) is a family of digital signal processor (DSP) chips produced by Motorola Semiconductor (later known as Freescale Semiconductor, now acquired by NXP) starting in 1986 and is still being produced in more advanced models in the 2010s.
MP3 (formally MPEG-1 Audio Layer III or MPEG-2 Audio Layer III) is an audio coding format for digital audio.
Nasir Ahmed (born 1940 in Bangalore, India) is a Professor Emeritus of Electrical and Computer and Engineering at University of New Mexico (UNM).
In mathematics and science, a nonlinear system is a system in which the change of the output is not proportional to the change of the input.
System identification is a method of identifying or measuring the mathematical model of a system from measurements of the system inputs and outputs.
Numerical analysis is the study of algorithms that use numerical approximation (as opposed to general symbolic manipulations) for the problems of mathematical analysis (as distinguished from discrete mathematics).
The Nyquist frequency, named after electronic engineer Harry Nyquist, is half of the sampling rate of a discrete signal processing system.
In the field of digital signal processing, the sampling theorem is a fundamental bridge between continuous-time signals (often called "analog signals") and discrete-time signals (often called "digital signals").
Photo manipulation involves transforming or altering a photograph using various methods and techniques to achieve desired results.
Quantization, in mathematics and digital signal processing, is the process of mapping input values from a large set (often a continuous set) to output values in a (countable) smaller set.
Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects.
In mathematics, a real number is a value of a continuous quantity that can represent a distance along a line.
In computer science, real-time computing (RTC), or reactive computing describes hardware and software systems subject to a "real-time constraint", for example from event to system response.
In mathematics, a recurrence relation is an equation that recursively defines a sequence or multidimensional array of values, once one or more initial terms are given: each further term of the sequence or array is defined as a function of the preceding terms.
Ronald W. Schafer (born February 17, 1938) is an electrical engineer notable for his contributions to digital signal processing.
In mathematics and engineering, the s-plane is the complex plane on which Laplace transforms are graphed.
In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal.
Seismology (from Ancient Greek σεισμός (seismós) meaning "earthquake" and -λογία (-logía) meaning "study of") is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies.
A sensor array is a group of sensors, usually deployed in a certain geometry pattern, used for collecting and processing electromagnetic or acoustic signals.
Signal processing concerns the analysis, synthesis, and modification of signals, which are broadly defined as functions conveying "information about the behavior or attributes of some phenomenon", such as sound, images, and biological measurements.
In signal processing, a sinc filter is an idealized filter that removes all frequency components above a given cutoff frequency, without affecting lower frequencies, and has linear phase response.
Sonar (originally an acronym for SOund Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels.
A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing console that makes live or pre-recorded sounds louder and may also distribute those sounds to a larger or more distant audience.
In statistical signal processing, the goal of spectral density estimation (SDE) is to estimate the spectral density (also known as the power spectral density) of a random signal from a sequence of time samples of the signal.
Speech coding is an application of data compression of digital audio signals containing speech.
Speech processing is the study of speech signals and the processing methods of these signals.
Speech recognition is the inter-disciplinary sub-field of computational linguistics that develops methodologies and technologies that enables the recognition and translation of spoken language into text by computers.
Statistical signal processing is an approach to signal processing which treats signals as stochastic processes, utilizing their statistical properties to perform signal processing tasks.
The step response of a system in a given initial state consists of the time evolution of its outputs when its control inputs are Heaviside step functions.
Stream processing is a computer programming paradigm, equivalent to dataflow programming, event stream processing, and reactive programming, that allows some applications to more easily exploit a limited form of parallel processing.
Stream Processors, Inc was a Silicon Valley-based fabless semiconductor company specializing in the design and manufacture of high-performance digital signal processors for applications including video surveillance, multi-function printers and video conferencing.
The Super Harvard Architecture Single-Chip Computer (SHARC) is a high performance floating-point and fixed-point DSP from Analog Devices.
In physics and systems theory, the superposition principle, also known as superposition property, states that, for all linear systems, the net response caused by two or more stimuli is the sum of the responses that would have been caused by each stimulus individually.
Telecommunication is the transmission of signs, signals, messages, words, writings, images and sounds or information of any nature by wire, radio, optical or other electromagnetic systems.
Texas Instruments TMS320 is a blanket name for a series of digital signal processors (DSPs) from Texas Instruments.
Time domain is the analysis of mathematical functions, physical signals or time series of economic or environmental data, with respect to time.
A time series is a series of data points indexed (or listed or graphed) in time order.
In engineering, a transfer function (also known as system function or network function) of an electronic or control system component is a mathematical function giving the corresponding output value for each possible value of the input to the device.
A wavelet is a wave-like oscillation with an amplitude that begins at zero, increases, and then decreases back to zero.
In mathematics, a wavelet series is a representation of a square-integrable (real- or complex-valued) function by a certain orthonormal series generated by a wavelet.
Weather forecasting is the application of science and technology to predict the conditions of the atmosphere for a given location and time.
In mathematics and signal processing, the Z-transform converts a discrete-time signal, which is a sequence of real or complex numbers, into a complex frequency domain representation.
In mathematics, a zero of a function is a value such that.