low-pass filter


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Related to low-pass filter: high-pass filter, LPF

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 ?
While the ideal low-pass filter is characterized solely by its bandwidth, our HDAF approximation is controlled by two parameters n and [sigma].
Because the low-pass filter has unitary gain, the filter coefficients have the following property:
In most cases, built-in high-pass and low-pass filters are not needed in a subwoofer, because the owner will be making use of an outboard crossover of some kind (usually contained within a surround preamp or surround receiver).
I initially set the Hsu low-pass filter to the bypass position.
Noise management with factory-programmable options for a switched-capacitor low-pass filter or no low-pass filter; and
4-million pixels, a super high-speed AF CMOS sensor with no low-pass filter, and the latest EXPEED 4A image-processing engine, the NIKON 1 J4 offers superior image quality.
Semtech's proprietary digital low-pass filter samples the PWM dimming signal to extract the duty cycle information and maps this into the current setting DACs.
2-million pixels, and equipped with a Nikon DX-format CMOS sensor with no optical low-pass filter, the latest EXPEED 4 image-processing engine, as well as Guide Mode and a variety of Special Effects that enable simple capture photos as intended.
In common with many digital cameras, the original Cyber-shot RX1 camera features a multi-segment optical low-pass filter (OLPF) in front of the sensor to suppress unwanted moire and color artifacts.
2-million pixels and a Nikon DX-format CMOS sensor with no optical low-pass filter, as well as the latest image-processing engine, EXPEED 4, for the best image quality and definition in its class
In addition to its infrared proximity sensor and ambient light sensor, the chip contains a digital low-pass filter that removes florescent light flicker, a 12 bit A/D converter, DSP, temperature compensation circuit, I2C interface, oscillator and a driver for an infrared emitter.