low-pass filter

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low-·pass fil·ter

a device or material with the opposite effect from a high-pass filter; most tissues act as low-pass filters of ultrasound signals.

low-pass filter

A filter that removes high-frequency waves from a sample, allowing only those below a specified frequency to pass.
See also: filter
References in periodicals archive ?
Elwakil, "Approximated fractional order Chebyshev lowpass filters", Mathematical Problems in Engineering, vol.
Firstly, the original image is decomposed in NSCT domain to obtain the lowpass subband coefficients and a series of the bandpass directional subband coefficients.
This shows that lowpass filtering (LPF) of input auto and cross correlation sequences can be performed in linear time using the proposed algorithm [5].
By using the hybrid matrix and extracting the reflection and transmission matrices and using the conditions for zero reflection, a suitable arrangement of materials for designing bilayer anisotropic lowpass filters and polarizers was found.
S o, feature extraction from this vector gives features from the lowpass as well as the highpass components of the signal which are more robust features to the presence of degradations.
Afterwards, Norbet Wiener, Highpass or Lowpass is used to improve image ([23], [14], [11]).
There are only five audio filters (channel mixer, fade in/out, lowpass, normalize, and volume) and preview is limited to 2- to 15-second chunks of audio, which is less than optimal.
5" midrange lowpass starts rolling off slowly at 200Hz, reaching -4dB at 60Hz and then descending to what I have defined as the minimum operating frequency of a driver (-20dB from passband level) at 30Hz.
The Step Penetrating Lowpass, shown in Figure 4, is one of two new microwave filter topologies that have been added to the M/FILTER synthesis program.
Integrated remote test access functionality allows technicians to conduct intrusive or non-intrusive testing either through the lowpass filter toward the voice switch or downstream toward the outside plant.
Deciphering the eye's input to the brain begins at the first synaptic level with lowpass temporal and spatial filtering.
Lowpass filters pass low frequency signal components while blocking high frequency components.