background noise


  • WordNet 3.6
    • n background noise extraneous noise contaminating sound measurements that cannot be separated from the desired signal
    • ***


In literature:

His cuckoo clocks could be heard in chorus against the background noise of the street and the blacksmith's rhythmic clanging.
"L'Assommoir" by Emile Zola
The voices of the rapids have dropped into the background, as have the dashing noises of the stream.
"The Forest" by Stewart Edward White
Something murmured soothingly in the background and overcame the noises in his head.
"A Diversity of Creatures" by Rudyard Kipling
It looked as if stamped in ink against the yellow background, and, like the former intruder, was advancing without noise.
"Two Boys in Wyoming" by Edward S. Ellis
There was a moment's silence, a silence with a background of strange noises.
"Mr. Grex of Monte Carlo" by E. Phillips Oppenheim
It was the multiple recording of ten thousand different conversations, all meaningless, against a background of "white" noise.
"A Spaceship Named McGuire" by Gordon Randall Garrett
Anywhere within the Solar System, a screamer can broadcast enough energy to overcome the background noise.
"Hanging by a Thread" by Gordon Randall Garrett
It has been quite difficult for us to study your customs and history with this high level background noise.
"Assassin" by Jesse Franklin Bone
The background noise from the choppy sea must have been enough to mask their approach.
"Project Cyclops" by Thomas Hoover
The voices of the rapids have dropped into the background, as have the dashing noises of the stream.
"Modern Essays" by John Macy
An annoyed whistle lifted itself against the general background of noise.
"Steel" by Charles Rumford Walker
She heard breathing, and the background noise, a hot trumpet squeaking up the summits of banality.
"The Trial of Callista Blake" by Edgar Pangborn

In news:

For kids, TV is life's background noise .
Yep, Google Just Patented Background Noise .
TV can be good for kids' exercise, bad for background noise .
It's the perennial question of whether the blurbs on book covers are still meaningful or have become just background noise.
Walk across a bouncy rubber tongue complete with taste buds and realistic burping noises in the background.
If semiconductor-based imagers are not constantly cooled, their heat can create so much background noise that the incoming infrared light gets lost.
We must read hundreds in the course of our commodity-saturated day, but we use a special part of our brains, a junkyard reserved for background noise, that allows us to imbibe messages, even act on them, without being aware.
Cons Poor background noise supression.
John Cordes/Icon SMITrumbo's season-long excellence is not much more than background noise these days.
The music cannot be background noise, and seeing a song deconstructed into black mites on the page is akin to seeing a building you pass by every day reduced to a pile of bricks.
The Trouble With Background Noise.
But let's say you do want a television in your bath — perhaps you enjoy its background noise while you prepare for bed, or you like to get a jump on the day's headlines as you primp in the mornings.
Like the sounds of a crying child on an airplane, partisan bickering has become unavoidable background noise.
At the time, it was all background noise as I proceeded to do my homework or help Grandma with the ironing (which at that time was fascinating work for some peculiar reason.
Trying to sort out confusing sounds is no longer a problem because background noise and distractions are eliminated.

In science:

From a data analysis point of view, we try to develop a technique able to remove this interference while producing a minimum disturbance to the underlying noise background .
Removing Line Interference from Gravitational Wave Interferometer Data
The rms background fluctuations (δI ) imply a sky noise σconf = h(δI )2 i1/2 for observations with spatial resolution ωef f .
High-Redshift Galaxies: The Far-Infrared and Sub-Millimeter View
In a recent work, Tinto at. al have used Doppler delayed beams for discriminating the stochastic background from the instrumental noise.
Algebraic approach to time-delay data analysis for LISA
The photon background on the imager had to be treated with particular care since for Z = 1 particles, the yield is small with ∼1-10 hit pixels per event, depending on the radiator material, and nondiscriminated noise hits could damage considerably the accuracy on the velocity measurement.
Experimental study of a proximity focusing Cherenkov counter prototype for the AMS experiment
Results of the numerical simulations concerning the detection capabilities of the matched and the pseudofilters (see text) in the one dimensional case and for a white noise background.
On Optimal Detection of Point Sources in CMB Maps
It was also demonstrated in one of the following articles that an impact of background noise brings additional difficulties to the problem of distinguishing between chaotic and stochastic dynamics .
Nonlinear analysis of EAS clusters
Our raw trigger rate is then much higher due to low energy background and noise pulses.
The LXeGRIT Compton Telescope Prototype: Current Status and Future Prospects
A low noise Double-sided Silicon Strip Detector (DSSD) is a fundamental element to realize a Semiconductor Multiple-Compton Telescope (SMCT)[1,2], which utilizes a multiple-Compton scattering technique to achieve good efficiency with high background rejection capability.
Gamma-ray Polarimetry
The design requires a system contribution of less than 10% of total noise, which is dominated by the light background from the night sky.
Performance of the Pierre Auger Fluorescence Detector and Analysis of well recontructed events
The study of the power law component is partially hampered, in the cases of PSR B0656+14 and PSR B1055-52, by the low signal-to-noise at energies above 1.5 keV, owing to the high background affecting the Fast Timing observations.
On the polar caps of the 3 Musketeers
Concentrating the planet flux in a small number of pixels improves SNR by reducing detector noise contributions and the acceptance angle for stellar and exozodiacal backgrounds. In some designs, the PSF shape varies with the location of the planet.
Coronographic Methods for the Detection of Terrestrial Planets
In order to make it similar to data we take the sinusoidal profile surimposed on a constant background and add a small amount of random noise to it.
A simple model for the complex lag structure of microquasars
The fiso find analysis gave the isophotal extent of the galaxy of pixels at least 3 σ above the sky noise background of the SDSS images.
Rates and Progenitors of Type Ia Supernovae
Here, we focus on localized noise sources, which may be intrinsic to the physical device realizing the qubit – notably, localized traps or background charges, leading to a quantum discrete environment.
Dynamical control of qubit coherence: Random versus deterministic schemes
This helps identify scenarios where algorithms that exploit any structure in the eigenvectors of the signals, such as the MUSIC and the Capon-MVDR algorithms in sensor array processing or particle filter based techniques , might be better able to tease ou t lower level signals from the background noise.
Sample eigenvalue based detection of high dimensional signals in white noise using relatively few samples