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Measurement of a signal at discrete time intervals
In signal processing, sampling is the reduction of a continuous-time signal to a discrete-time signal. A common example is the conversion of a sound wave
Sampling_(signal_processing)
Mathematical signal manipulation by computers
Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide
Digital_signal_processing
Field of electrical engineering
Graph signal processing presents several key points such as sampling signal techniques, recovery techniques and time-varying techiques. Graph signal processing
Signal_processing
Resampling method
But in signal processing, decimation by a factor of 10 actually means keeping only every tenth sample. This factor multiplies the sampling interval
Downsampling (signal processing)
Downsampling_(signal_processing)
Sufficiency theorem for reconstructing signals from samples
Nyquist–Shannon sampling theorem is a theorem in the field of signal processing which serves as a fundamental bridge between continuous-time signals and discrete-time
Nyquist–Shannon sampling theorem
Nyquist–Shannon_sampling_theorem
Signal processing effect
this way for computational efficiency. (See Sampling (signal processing), Nyquist rate (relative to sampling), and Filter bank.) Sinusoids are an important
Aliasing
Topics referred to by the same term
Look up sampling in Wiktionary, the free dictionary. Sampling may refer to: Sampling (signal processing), converting a continuous signal into a discrete
Sampling
Signal with discrete values in time and amplitude
of digital signal processing (DSP), a digital signal is a discrete time, quantized amplitude signal. In other words, it is a sampled signal consisting
Digital signal (signal processing)
Digital_signal_(signal_processing)
Continuous time-varying signal
An analog signal (American English) or analogue signal (British and Commonwealth English) is any signal, typically a continuous-time signal, representing
Analog_signal
Process of mapping a continuous set to a countable set
be modeled as two processes: sampling and quantization. Sampling converts a time-varying voltage signal into a discrete-time signal, a sequence of real
Quantization (signal processing)
Quantization_(signal_processing)
dimension. In m-D digital signal processing, useful data is sampled in more than one dimension. Examples of this are image processing and multi-sensor radar
Multidimensional signal processing
Multidimensional_signal_processing
Varying physical quantity that conveys information
multiple subject fields, including signal processing, information theory and biology. In signal processing, a signal is a function that conveys information
Signal
Swiss engineering academic, president of the École polytechnique fédérale de Lausanne
digital signal processing and is best known for his work on wavelets. He has also contributed to other areas, including sampling (signal processing), computational
Martin_Vetterli
Device for suppressing part of a signal
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
Filter_(signal_processing)
Electronic manipulation of audio signals
Audio signal processing is a subfield of signal processing that is concerned with the electronic manipulation of audio signals. Audio signals are electronic
Audio_signal_processing
Changing the sampling rate of a discrete signal
Sample-rate conversion, sampling-frequency conversion or resampling is the process of changing the sampling rate or sampling frequency of a discrete signal
Sample-rate_conversion
Signal processing technique
sensing, compressive sampling, or sparse sampling) is a signal processing technique for efficiently acquiring and reconstructing a signal by finding solutions
Compressed_sensing
Technique for reducing low-resolution image distortion
removal is done before (re)sampling at a lower resolution. When sampling is performed without removing this part of the signal, it causes undesirable artifacts
Spatial_anti-aliasing
Frequency divided by a characteristic frequency
In digital signal processing (DSP), a normalized frequency is a ratio of a variable frequency ( f {\displaystyle f} ) and a constant frequency associated
Normalized frequency (signal processing)
Normalized_frequency_(signal_processing)
Range of usable frequencies
different purposes. In the context of, for example, the sampling theorem and Nyquist sampling rate, bandwidth typically refers to baseband bandwidth.
Bandwidth_(signal_processing)
Minimum sampling rate to avoid aliasing
Nyquist–Shannon sampling theorem Sampling (signal processing) The factor of 1 2 {\displaystyle {\tfrac {1}{2}}} has the units cycles/sample (see Sampling and Sampling
Nyquist_rate
Frameworks for modeling variables that evolve over time
it may have been obtained by sampling from a continuous-time signal. When a discrete-time signal is obtained by sampling a sequence at uniformly spaced
Discrete time and continuous time
Discrete_time_and_continuous_time
Ratio of the desired signal to the background noise
Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background
Signal-to-noise_ratio
Radar performance enhancement strategy
spiral. The process of digital sampling causes ringing in the filters that are used to remove reflected signals from slow moving objects. Sampling causes frequency
Pulse-Doppler signal processing
Pulse-Doppler_signal_processing
Digital signal resampling method
digital signal processing, upsampling, expansion, and interpolation are terms associated with the process of resampling in a multi-rate digital signal processing
Upsampling
Underwater acoustic signal processing
submitted to the Nyquist–Shannon sampling theorem. Assuming the sampling period is T, thus after temporal sampling, the signal is r ( t ) = r ( n T ) = s (
Sonar_signal_processing
framerates without the need for precomputation. Anisotropic filtering Sampling (signal processing) Spatial anti-aliasing Amanatides, John (1984). "Ray tracing
Cone_tracing
Distribution estimation technique
sampling is also related to umbrella sampling in computational physics. Depending on the application, the term may refer to the process of sampling from
Importance_sampling
Technology that records, stores, and reproduces sound
may be used to change signals that have been encoded with a different sampling rate to a common sampling rate prior to processing. Audio data compression
Digital_audio
Maximum frequency of non-aliased component upon sampling
Conversely, the Nyquist rate for sampling a 22050 Hz signal is 44100 samples/second. When the highest frequency (bandwidth) of a signal is less than the Nyquist
Nyquist_frequency
Signal processing sample technique
In signal processing, undersampling or bandpass sampling is a technique where one samples a bandpass-filtered signal at a sample rate below its Nyquist
Undersampling
Topics referred to by the same term
Sample-rate conversion Downsampling Upsampling Oversampling Sampling (signal processing) Signal (information theory) Data conversion Interpolation Multivariate
Resampling
Specialized microprocessor optimized for digital signal processing
circuit chips. They are widely used in audio signal processing, telecommunications, digital image processing, radar, sonar and speech recognition systems
Digital_signal_processor
Signal (re-)construction algorithm
Anti-aliasing filter, Spatial anti-aliasing Rectangular function Sampling (signal processing) Signal (electronics) Sinc function, Sinc filter Lanczos resampling
Whittaker–Shannon interpolation formula
Whittaker–Shannon_interpolation_formula
Sampling higher than the Nyquist rate
In signal processing, oversampling is the process of sampling a signal at a sampling frequency significantly higher than the Nyquist rate. Theoretically
Oversampling
Mathematical technique for manipulating signals
modulations in some signal can be treated separately from the carrier wave of the signal. This has extensive use in many radio and signal processing applications
In-phase and quadrature components
In-phase_and_quadrature_components
{\displaystyle N\times N} sampling matrix. Multidimensional sampling provides the opportunity to look at digital methods to process signals. Some of the advantages
Hexagonal_sampling
rotordynamics, order tracking is a family of signal processing tools aimed at transforming a measured signal from time domain to angular (or order) domain
Order tracking (signal processing)
Order_tracking_(signal_processing)
Signal processing technique
In signal processing, signal averaging is a time domain technique applied to repetitive signals, used to recover waveforms that are obscured by random
Signal_averaging
Generalizations of Nyquist-Shannon sampling theorem for reconstructing signals
nonuniform samples, that is, samples not taken equally spaced in time. The Shannon sampling theory for non-uniform sampling states that a band-limited signal can
Nonuniform_sampling
S2CID 25685784. Digital control Sampling (signal processing) Discretization Wikibooks has a book on the topic of: Control Systems/Sampled_Data_Systems v t e
Sampled_data_system
Type of signal in signal processing
In signal processing, white noise is a random signal having equal intensity at different frequencies, giving it a constant power spectral density. The
White_noise
stage thereby improving the mixer gain. Frequency multiplier Sampling (signal processing) Synthesizer using harmonic mixing 8410B Network Analyzer; 8411A
Harmonic_mixer
Function in discrete mathematics
digital signal processing, the input is often a sampled quantity or signal that varies over time, such as the pressure of a sound wave, a radio signal, or
Discrete_Fourier_transform
Method in digital signal processing
digital signal processing, a digital down-converter (DDC) converts a digitized, band-limited signal to a lower frequency signal at a lower sampling rate
Digital_down_converter
quantization error. Pulse-code modulation Quantization (signal processing) Sampling (signal processing) Du, Ke-Lin; Swamy, M. N. S. (2010), Wireless Communication
Beta_encoder
Coordinate system for digital imaging
sampling. The HECS system enables the use of hexagonal sampling for digital imaging applications without requiring significant additional processing to
Hexagonal Efficient Coordinate System
Hexagonal_Efficient_Coordinate_System
Radar signal processing technique
indicator (MTI) begins with sampling two successive pulses. Sampling begins immediately after the radar transmit pulse ends. The sampling continues until the
Moving_target_indication
Type of voltage sampling device
continuously varying analog signal and holds (locks, freezes) its value at a constant level for a specified minimum period of time. Sample and hold circuits and
Sample_and_hold
Relative importance of certain frequencies in a composite signal
In signal processing, the power spectrum S x x ( f ) {\displaystyle S_{xx}(f)} of a continuous time signal x ( t ) {\displaystyle x(t)} describes the
Spectral_density
Important subject of signal processing and engineering
In signal processing, reconstruction usually means the determination of an original continuous signal from a sequence of equally spaced samples. This article
Signal_reconstruction
Changing the resolution of a digital image
digital signal processing, the scaling of raster graphics is a two-dimensional example of sample-rate conversion, the conversion of a discrete signal from
Image_scaling
Effect in signal processing
sense. Sampling, for instance, produces leakage, which we call aliases of the original spectral component. For Fourier transform purposes, sampling is modeled
Spectral_leakage
Stage of seismic exploration
which this continuous signal is discretised is referred to as the sampling interval or sampling rate (see Sampling (signal processing) for more details)
Seismic_data_acquisition
Series of signal-conditioning components
Signal chain, or signal-processing chain is a term used in signal processing and mixed-signal system design to describe a series of signal-conditioning
Signal_chain
Concept in statistics
In physics, statistics, econometrics and signal processing, a stochastic process is said to be in an ergodic regime if an observable's ensemble average
Ergodic_process
Signal-processing paradigm that trades precision for volume of measurements
Sample abundance is a signal processing paradigm in which very large numbers of low-precision measurements—often one-bit samples produced by comparators
Sample_abundance
Type of filter in signal processing
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
Finite_impulse_response
Method for converting signals between digital and analog
storage, and processing. There are many methods of digitization. In Nyquist-rate ADCs, an analog signal is sampled at a relatively low sampling frequency
Delta-sigma_modulation
Concept in applied mathematics
generalized approach for nonuniform sampling, the NUDFT allows one to obtain frequency domain information of a finite length signal at any frequency. One of the
Non-uniform discrete Fourier transform
Non-uniform_discrete_Fourier_transform
Type of multi-scale signal representation
multi-scale signal representation developed by the computer vision, image processing and signal processing communities, in which a signal or an image
Pyramid_(image_processing)
Topics referred to by the same term
sampling theory may mean: Nyquist–Shannon sampling theorem, digital signal processing (DSP) Statistical sampling Fourier sampling This disambiguation
Sampling_theory
Topics referred to by the same term
sub-sampling may refer to: Resampling (alternative to bootstrap) Sampling (statistics) Replication (statistics) Downsampling in signal processing Chroma
Subsampling
Form of distortion that limits a signal in processing
value that can be represented, and if during processing the amplitude of the signal is doubled, sample values of 32000 should become 64000, but instead
Clipping_(signal_processing)
Technique in signal processing
is typically used to increase the sampling rate of a digital signal, or to shift it by a fraction of the sampling interval. It is often used also for
Lanczos_resampling
System for digitally encoding audio signals
represent audio signals in digital format, a sequence of single-bit values at a sampling rate of 2.8224 MHz. This is 64 times the CD audio sampling rate of 44
Direct_Stream_Digital
Practice of encoding color images
Original still image. 4:2:0 progressive sampling applied to a still image. Both fields are shown. 4:2:0 interlaced sampling applied to a still image. Both fields
Chroma_subsampling
Process of sampling signals from sensors and converting into digital data
Data acquisition is the process of sampling signals that measure real-world physical conditions and converting the resulting samples into digital numeric
Data_acquisition
Measurement of the power in a radio signal
received signal strength indicator or received signal strength indication (RSSI) is a measurement of the power present in a received radio signal. RSSI is
Received signal strength indicator
Received_signal_strength_indicator
Type of low-pass filter
filter needs to compute only half as many output samples as input samples. In digital signal processing, half-band filters are widely used for their efficiency
Half-band_filter
Model of signal reconstruction in digital-to-analog (DAC) converters
converting a discrete-time signal to a continuous-time signal by holding each sample value for one sample interval. It has several applications in electrical
Zero-order_hold
Type of stochastic process
employed in signal processing algorithms. In the case where { X t } {\displaystyle \left\{X_{t}\right\}} is a complex stochastic process the autocovariance
Stationary_process
Techniques and methods in signal processing
In signal processing, time–frequency analysis comprises those techniques that study a signal in both the time and frequency domains simultaneously, using
Time–frequency_analysis
Particular representation of a signal
In mathematics and signal processing, an analytic signal is a complex-valued function that has no negative frequency components. The real and imaginary
Analytic_signal
Function used in signal processing
In signal processing and statistics, a window function (also known as an apodization function or tapering function) is a mathematical function that is
Window_function
Signal used to represent data as a sequence of discrete values
generate signals resembling sine waves. In digital signal processing, a digital signal is a representation of a physical signal that is sampled and quantized
Digital_signal
Collection of random variables
Stochastic processes have applications in many disciplines such as biology, chemistry, ecology, neuroscience, physics, image processing, signal processing, control
Stochastic_process
Filter bank
at 1÷N of the ADC clock, allowing digital processing when N=Clock(ADC)÷Clock(FPGA). This critical sampling introduces aliasing. Similar to the MDCT time
Polyphase_quadrature_filter
System that converts an analog signal into a digital signal
which new digital values are sampled from the analog signal. The rate of new values is called the sampling rate or sampling frequency of the converter.
Analog-to-digital_converter
Signal processing technique
In statistical signal processing, the goal of spectral density estimation (SDE) or simply spectral estimation is to estimate the spectral density (also
Spectral_density_estimation
Digital representation of sampled analog signals
stream's fidelity to the original analog signal: the sampling rate, which is the number of times per second that samples are taken; and the bit depth, which
Pulse-code_modulation
Signal processing design process
Filter design is the process of designing a signal processing filter that satisfies a set of requirements, some of which may be conflicting. The purpose
Filter_design
Audio performance differences between technologies
sampling frequency. The choice of sampling frequency in a digital system is based on the Nyquist–Shannon sampling theorem. This states that a sampled
Comparison of analog and digital recording
Comparison_of_analog_and_digital_recording
Multiple converters working in parallel
multiple converters in parallel to sample the input signal at staggered intervals, increasing the overall sampling rate and improving performance without
Time-interleaved_ADC
Overview of and topical guide to electrical engineering
Continuous signal, Discrete signal Down sampling Nyquist frequency Nyquist–Shannon sampling theorem Oversampling Sample and hold Sampling frequency Undersampling
Outline of electrical engineering
Outline_of_electrical_engineering
analysis. The digitizing process typically involves in-phase/quadrature (I/Q) or complex sampling so that all characteristics of the signal are preserved, as
Signal_analyzer
Tool for digital signal processing
In signal processing, a filter bank (or filterbank) is an array of bandpass filters that separates the input signal into multiple components, each one
Filter_bank
Audible defect generated during the recording or editing of a sound
Dynamic range compression Glitch (music) Compression artifact Sampling (signal processing) Signal (information theory) Window function Circuit bending Sound
Sonic_artifact
Concept in Fourier analysis
time, though not in the sense of a signal in the time domain. For example, if the sampling rate of an audio signal is 44100 Hz and there is a large peak
Cepstrum
Process of varying one or more properties of a periodic waveform
The process encodes information in the form of a message signal modulated onto a carrier signal to be transmitted. For example, the message signal might
Signal_modulation
Mathematical model which is both linear and time-invariant
circuit analysis and design, signal processing and filter design, control theory, mechanical engineering, image processing, the design of measuring instruments
Linear_time-invariant_system
Limiting a signal to contain only low-frequency components
Nyquist–Shannon sampling theorem, which ensures no information is lost during sampling. In reality, most signals aren't perfectly bandlimited, and signals we care
Bandlimiting
Musical instrument microchip
The Ensoniq Signal Processor (ESP) was a digital signal processor chip used in many of Ensoniq's musical instruments and on their Soundscape Elite PC
Ensoniq_Signal_Processor
Digital audio effect
component in the signal, or else high-frequency components of the signal will be aliased. Specifically, the frequency of sampling (a.k.a. the sample rate) must
Bitcrusher
Signal processing technique used in radar
Space-time adaptive processing (STAP) is a signal processing technique most commonly used in radar systems. It involves adaptive array processing algorithms to
Space-time adaptive processing
Space-time_adaptive_processing
Digital signal performance enhancement
image, and video processing, usually in combination with dithering, as part of the process of quantization or bit-depth reduction of a signal. Its purpose
Noise_shaping
Filter used to construct a smooth analog signal from a digital input
reconstructed, then sampled, and this is necessary for general changes in resolution. For integer ratios of sampling rate, one may simplify by sampling the impulse
Reconstruction_filter
Method in signal processing
In signal processing, overlap–save is the traditional name for an efficient way to evaluate the discrete convolution between a very long signal x [ n ]
Overlap–save_method
Lobe in a discrete aperture antenna
an under-sampled signal. Per Shannon's sampling theorem, the sampling rate must be at least twice the highest frequency of the desired signal in order
Grating_lobes
Filtering technique
ensembles of observed time-series obtained by sampling, for example sampling an audio signal. Such samples can be viewed as vectors in a high-dimensional
Signal_subspace
SAMPLING SIGNAL-PROCESSING
SAMPLING SIGNAL-PROCESSING
Boy/Male
Tamil
Signal, Goal
Surname or Lastname
English (Lancashire)
English (Lancashire) : habitational name from Wignal, a minor place near Holmes in the parish of Croston, so named from the genitive case of the Old English byname Wicga (see Wigley) + Old English h(e)alh ‘nook’, ‘corner’, ‘recess’.
Male
English
Scottish Anglicized form of Gaelic Fionnghall, FINGAL means "white valor."
Male
Slovene
Short form of Slovene Ignacij, possibly IGNAC means "unknowing."
Female
Welsh
Pet form of Welsh Siân, SIANA means "God is gracious."
Female
Hebrew
(סִיגָל) Hebrew name SIGAL means "treasure."
Girl/Female
Latin American Swedish
Sign.
Female
English
Variant spelling of English Sienna, SIENA means "reddish-orange."Â
Female
Norse
Variant spelling of Old Norse Signy, SIGNE means "new victory."
Surname or Lastname
English
English : variant of Hamlin.
Surname or Lastname
English
English : from Anglo-Norman French, Middle English camelin ‘camel’ (Latin camelinus, a derivative of camelus), hence a metonymic occupational name for a maker or seller of camel-hair cloth. Compare Camel.
Surname or Lastname
English
English : patronymic from Abel, which was a popular Middle English personal name. Compare Aplin.
Girl/Female
Australian, Danish, Finnish, German, Latin, Scandinavian, Swedish
Sign; New Victory
Boy/Male
Tamil
Signal, Goal
Girl/Female
Danish, German, Latin, Scandinavian, Swedish
Sign; Signal; Victory
Surname or Lastname
English (Devon)
English (Devon) : variant spelling of Appling.
Surname or Lastname
English (mainly southeastern Wales)
English (mainly southeastern Wales) : variant of Tamblyn.
Girl/Female
Latin
Sign.
Girl/Female
Latin
Sign.
Surname or Lastname
English
English : possibly from a pet form of an Old French personal name, Pamphile, from Greek Pamphilos, the name of a 4th-century martyr, from pan ‘all’ + -philos ‘dear to’, ‘beloved of’.
SAMPLING SIGNAL-PROCESSING
SAMPLING SIGNAL-PROCESSING
Surname or Lastname
English
English : from a diminutive of Drew 2 or 3.
Boy/Male
Tamil
Beauty
Surname or Lastname
English
English : variant spelling of Pask.Danish (Paaske) : from a vernacular short form of the Latin personal name Paschalis (see Pascal), or perhaps a nickname for someone who was born at Easter, påske, or had some other particular connection with that time of year, such as owing a feudal obligation then.German : from an eastern (Slavic) short form of the medieval personal names Paschasius or Paschalis (see Pascal).German : habitational name from Paska in Thuringia.German (Päske) : from an eastern (Slavic) short form of the personal name Petrus (see Peter).
Boy/Male
Hindu
Sri venkateswara, Mahavirat. the famous name and fame in world. suitable to boys
Male
Egyptian
, a priest of the god Sennofre.
Boy/Male
Tamil
Surrender, Injuring
Boy/Male
Arabic
Friend
Girl/Female
Indian
Radiant person, Gorgeous
Girl/Female
Hindu
Good minded
Boy/Male
Biblical
Brother of the Lord.
SAMPLING SIGNAL-PROCESSING
SAMPLING SIGNAL-PROCESSING
SAMPLING SIGNAL-PROCESSING
SAMPLING SIGNAL-PROCESSING
SAMPLING SIGNAL-PROCESSING
a.
Noticeable; distinguished from what is ordinary; eminent; remarkable; memorable; as, a signal exploit; a signal service; a signal act of benevolence.
n.
A seal; especially, in England, the seal used by the sovereign in sealing private letters and grants that pass by bill under the sign manual; -- called also privy signet.
n.
The art of managing a vessel; seamanship; navigation; as, globular sailing; oblique sailing.
v. i.
To make a sign or signal; to communicate directions or intelligence by signs.
adv.
In a signal manner; eminently.
a.
Characterized by an awkward, irregular pace; as, a shambling trot; shambling legs.
a.
Roving; wandering; discursive; as, a rambling fellow, talk, or building.
n.
See Jingal.
n.
A token; an indication; a foreshadowing; a sign.
n.
A signal telegraph; an apparatus for giving signals by the disposition of lanterns, flags, oscillating arms, etc.
n.
A roundish mass of dough boiled in soup, or as a sort of pudding; often, a cover of paste inclosing an apple or other fruit, and boiled or baked; as, an apple dumpling.
v. t.
To communicate by signals; as, to signal orders.
v. t.
To notify by a signals; to make a signal or signals to; as, to signal a fleet to anchor.
imp. & p. p.
of Sign
pl.
of Sigma
/
or Signalled (imp. & p. p.) of Signal
a.
Of or pertaining to signals, or the use of signals in conveying information; as, a signal flag or officer.
n.
The material used in tamping. See Tamp, v. t., 1.
n.
A sign made for the purpose of giving notice to a person of some occurence, command, or danger; also, a sign, event, or watchword, which has been agreed upon as the occasion of concerted action.
a.
Suitable to be signed; requiring signature; as, a legal document signable by a particular person.