noise floor

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noise floor

All the unwanted, extraneous signals in an electronic circuit. It is rated in decibels below a reference point, which is determined by the system being measured. See noise.
References in periodicals archive ?
WSComm relies on a spectrum-agile algorithm that enables robust opportunistic communications at or near the radio frequency noise-floor with low detection probability and maximum spectrum efficiency.
It operates at a data rate of up to 100 MHz, accommodates as many as 1,024 I/O channels, and provides low noise-floor performance.
Maxim's MAX2021/MAX2023 and MAX2058/MAX2059 Series of high-performance I/Q modulators and RF digital VGAs for GSM zero-IF architectures, together with the company's MAX5873 dual DAC and MAX4395 quad amplifier, form what is said to be the industry's first and only digital base-band-to-RF VGA chipset that meets all spectral-mask and noise-floor requirements for single-carrier GSM850/900 and DCS1800/PCS1900 EDGE base stations.
A new, lower noise-floor absolute cryogenic radiometer (ACR II) became operational as the standard infrared detector.
Bose-designed circuitry also dramatically reduces the noise-floor, a "hiss" commonly found in many electronic audio devices.
For example, the low noise-floor option for all ES models allows the port 2 coupler to be reversed for higher dynamic range in the forward direction.