Signal Processing

Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

Show all tag synonyms
Popular Name New
any form of signal processing for which the input is an image, such as a photograph or video frame.
2718 questions
20 asked this month, 285 this year
a numerical computing environment and a fourth-generation programming language. Use this tag with care.. see excerpt.
2594 questions
8 asked this week, 30 this month
an efficient algorithm to compute the discrete Fourier transform (DFT) and its inverse.
2447 questions
13 asked this week, 37 this month
a device or process that transforms a signal by selectively choosing specific frequencies and leaving others with appropriate gain or as it is.
2433 questions
9 asked this week, 22 this month
A discrete signal or discrete-time signal is a time series consisting of a sequence of quantities.
1958 questions
7 asked this week, 37 this month
1733 questions
5 asked this week, 24 this month
a mathematical operation that decomposes a function into its constituent frequencies, known as a frequency spectrum.
1680 questions
7 asked this week, 31 this month
Audio, or in terms of signal processing, an audio signal is an analog or digital representation of sound, typically as an electrical voltage.
1318 questions
6 asked this week, 15 this month
the physical transfer of data (a digital bit stream) over a point-to-point or point-to-multipoint communication channel.
1147 questions
8 asked this week, 22 this month
The frequency spectrum of a time-domain signal is a representation of that signal in the frequency domain.
1038 questions
17 asked this month, 155 this year
the process of designing a filter.
987 questions
8 asked this week, 12 this month
In signal processing noise can be considered random unwanted data without meaning.
981 questions
9 asked this month, 155 this year
a high-level interpreted general programming language. Python has popular numerical and scientific libraries/packages, most notably numpy and scipy. The scipy.signal package is a powerful …
863 questions
5 asked this week, 20 this month
the reduction of a continuous-domain signal to a discrete-domain signal.
854 questions
140 asked this year
a mapping between a finite set of discrete points in a (primal) domain (time, space) and the dual frequency domain. DFT requires an input sequence which is di…
816 questions
11 asked this month, 152 this year
a mathematical operation on two functions f and g, producing a third function that is typically viewed as a modified version of one of the original functions.
772 questions
13 asked this month, 149 this year
Computer vision includes methods of processing, analyzing, images and high-dimensional data to form high level understanding and recognition of the scene or images.
742 questions
5 asked this month, 81 this year
the number of cycles (of the signal) per second.
600 questions
8 asked this month, 90 this year
the distribution of signal power over frequencies.
598 questions
7 asked this month, 125 this year
A continuous signal or a continuous-time signal is a varying quantity (a signal) whose domain, which is often time, is a continuum.
581 questions
15 asked this month, 130 this year
an electronic filter that passes low-frequency signals but attenuates signals with frequencies higher than the cutoff frequency.
554 questions
10 asked this month, 116 this year
a type of a signal processing filter whose impulse response is of finite duration.
526 questions
6 asked this month, 101 this year
A linear system operates on inputs with only linear operators so the response to a complex input can be analysed as the sum of the response to a set of simpler inputs. This mathematical property makes…
514 questions
9 asked this month, 91 this year
a wave-like oscillation with an amplitude that starts out at zero, increases, and then decreases back to zero.
512 questions
85 asked this year
479 questions
13 asked this month, 90 this year
covers signal processing where input is an image, such as a photograph or video frame and the output could be an improved or altered image, parameters related to the image or information abou…
479 questions
7 asked this month, 47 this year
the process of varying one or more properties of a high-frequency periodic waveform, called the carrier signal, with the amplitude of low-frequence modulating signal which typically cont…
464 questions
13 asked this month, 87 this year
a property of signal processing systems.
417 questions
82 asked this year
The Z-transform converts a discrete time-domain signal, which is a sequence of real or complex numbers, into a complex frequency-domain representation.
414 questions
8 asked this month, 68 this year
the cross-correlation of a signal with itself.
376 questions
49 asked this year
a method expressed in a finite list of steps of well-defined instructions to process a signal.
373 questions
31 asked this year
366 questions
6 asked this month, 74 this year
a mathematical representation of relationship between input and output (signal) of a linear, time-invariant system.
365 questions
7 asked this month, 59 this year
the quantitative measure of the output spectrum of a system or device in response to a stimulus, and is used to characterize the dynamics of the system.
364 questions
9 asked this month, 71 this year
its output when presented with a brief input signal, called an impulse.
355 questions
64 asked this year
a technique for approximating an unobserved signal from an observed signal containing noise.
346 questions
5 asked this month, 61 this year
1
2 3 4 5
…
15