background signal
- noun
- Specialized
:
señal de fondo
- The researchers had to account for the background signal that interfered with their measurements during the experiment.
Now they have all claimed to have found a gravitational wave background signal with their pulsar timing arrays.
- Now they have all claimed to have found a gravitational wave background signal with their pulsar timing arrays.
Examples
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Empty cell was used to measure background signals and was subtracted from the sample reading.
Academic text (2018) -
With 100 times lower background than KamLAND, the Borexino data reveal a clear low-background signal for anti-neutrinos that match the energy spectrum of uranium and thorium geo-neutrinos.
Blog text (28) -
Now they have all claimed to have found a gravitational wave background signal with their pulsar timing arrays.
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As pointing controls were developed for the rockets, it became possible to concentrate the observations on individual sources while the collimator reduced the background signal.
Academic text (1991) -
To evaluate the background signal, we used bovine serum albumin instead of human serum as the background signal control. The cutoff value was defined as twice the background signal (21).
Academic text (2014) -
To evaluate the background signal, we used bovine serum albumin instead of human serum as the background signal control. The cutoff value was defined as twice the background signal (21).
Academic text (2014) -
To evaluate the background signal, we used bovine serum albumin instead of human serum as the background signal control. The cutoff value was defined as twice the background signal (21).
Academic text (2014) -
The filter-based fluorometer uses TRL to detect trace amounts of target chemicals by removing interference from fluorescent background signals given off by other organic substances present in a meat sample.
Academic text (2005) -
To improve accuracy, they worked on minimizing the background signal that could confuse the data collected.
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In order to get reliable readings, the scientists filtered out any background signal that might obscure the target phenomenon.
Synonyms
172
5.6
Extra sounds or information that hide the main message
93
6.6
Unwanted signals that disturb or block radio and phone communication
85
5.7
Unwanted signals or noise that make measurements unclear
11
3.5
Unwanted sounds that make it hard to hear or record something
Unwanted background sound or electrical hiss that hides the true signal
How Strong
- Specialized
93
6.6
- Specialized
Surface Forms
Morphology
The meaning is directly compositional: 'background' denotes extraneous/noise and 'signal' denotes an electronic transmission, so together they predictably mean an extraneous or noise signal. This noun-noun compound follows a common English pattern (and similar constructions exist cross-linguistically), so a B1 learner who knows both words can infer the MWE’s meaning.
Etymology
Background signal comes from the idea of a weak sound or signal coming from the background—like quiet noise behind a clear sound or picture. That extra signal can hide or confuse the main one, which is why it means 'an extra signal that gets in the way of what you are trying to measure'.