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.
kalman-filters× 269
a mathematical method using noisy measurements observed over time to produce values that tend to be closer to the true values of the measurements and their associated calculated v…
transfer-function× 269
a mathematical representation of relationship between input and output (signal) of a linear, time-invariant system.
estimation× 258
a technique for approximating an unobserved signal from an observed signal containing noise.
interpolation× 206
a method of constructing new data points within the range of a discrete set of known data points.
spectrogram× 198
a time-varying spectral representation (forming an image) that shows how the spectral density of a signal varies with time.
demodulation× 197
the act of extracting the original information-bearing signal from a modulated carrier wave.
transform× 186
a mathematical technique to convert data in one domain to another. The most common example is using the Fourier Transform to convert data from the time domain to t…
bandpass× 175
a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.
speech-recognition× 162
the process of converting the spoken word to text, usually without regard to a particular speaker (which is more commonly referred to as "voice recognition").
correlation× 155
a measure of similarity of two waveforms as a function of a time-lag applied to one of them.
bandwidth× 152
the difference between the upper and lower frequencies in a contiguous set of frequencies
snr× 148
Signal-to-noise ratio (often abbreviated 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 noise.
adaptive-filters× 142
a filter that self-adjusts its transfer function according to an optimization algorithm driven by an error signal.
mfcc× 142
Related to the calculation, verification, usage, and requirements for Mel Frequency Cepstral Coefficients.
downsampling× 142
In signal processing, downsampling (or "subsampling") is the process of reducing the sampling rate of a signal.
hilbert-transform× 137
an operator of a function of time or frequency domain that, unlike the Fourier Transform, returns a function in the same domain. The Hilbert Transform of $ x \left( t \right) $ e…
pitch× 133
Pitch of an audio signal representing a musical note, measured in units of octave and relative to a pitch standard such as A440, is the base-2 logarithm of the frequency ratio of the fundamental frequ…
