background signal


  • WordNet 3.6
    • n background signal extraneous signals that can be confused with the phenomenon to be observed or measured "they got a bad connection and could hardly hear one another over the background signals"
    • ***


In literature:

Gaumet proposes to employ silvered signals upon a black background.
"Scientific American Supplement, No. 508, September 26, 1885" by Various
In the background, at the top of the stairs, the swollen visage of Lady Crimmetart was glowing like a railway danger-signal.
"The Quest" by Frederik van Eeden
Finnegan, who had been waiting politely in the background, beheld this signal with joy.
"The Hallowell Partnership" by Katharine Holland Brown

In news:

In order to maximize the signal to background ratio, use a membrane with low auto- fluorescence , such as a low fluorescence PVDF membrane.
This USBee Packet Presenter screen shows the raw logic signals (background) and the interpretation based on a specific protocol that shows packet addresses, control bits, and register comman.
Background Plaintiff obtained a patent for a side-view mirror containing a lighted turn signal.
The intervening layers process the signals--among other tasks, adjusting neural responses under different lighting conditions and increasingly distinguishing objects from their backgrounds.

In science:

Beyond establishing the in- flight background spectrum in an LXe Compton telescope, we would like to prove its imaging performance and background suppression capability by identifying the signal from the Crab nebula.
The LXeGRIT Compton Telescope Prototype: Current Status and Future Prospects
Thus, in the analysis, one is faced with two problems: large-amplitude variable sources whose signal can mimic a microlensing signal, and variable sources of smaller amplitude whose signal can give rise to non-gaussian fluctuations superimposed on the background or on other physical variations.
Microlensing towards M31: candidates and perspectives
Simulations made on a high granularity detector show a very good rejection to background signals. A multicell prototype including 3 bolometers has been developed to allow correlations between the cells for background event discrimination.
MACHe3, a prototype for non-baryonic dark matter search: KeV event detection and multicell correlation
We then calculate different signal topologies in neutrino telescopes: through-going muons, contained muons, showers, and study their capabilities to discriminate a dark matter signal from backgrounds.
Spectra of neutrinos from dark matter annihilations
We consider the standard through-going muon signal and point out that other classes of events can be studied in realistic detectors and have interesting features from the point of view of discriminating a DMν signal from the atmospheric background and of reconstructing DM properties.
Spectra of neutrinos from dark matter annihilations
However, the oscillations appear to be superimposed on a much larger negative background signal.
Thermo-Electric Properties of Quantum Point Contacts
Identifying the background signal in angle-resolved photoemission spectra of high-tempertature cuprate superconductors.
Tl2Ba2CuO6+d Brings Spectroscopic Probes Deep Into the Overdoped Regime of the High-Tc Cuprates
Once the MLP is set, the evaluation of final efficiencies is done using the third independent data sample (namely, a factor 40 (75) larger than what is expected for background (signal) after five years of CNGS running with a T3000 detector).
Study of accelerator neutrino interactions in a liquid argon TPC
We see how events are classified in two independent classes: signal like events (labeled with 2) and background like ones (labeled with 1). 68% of ντ CC (τ → e) events and 10% of νeCC events, occurring in fiducial volume, are classified to be a signal like event.
Study of accelerator neutrino interactions in a liquid argon TPC
Given a mean number of background events and a total number of observed events (obtained using Poisson statistics for the sum of signal and background taking into account 30% signal reduction), we calculate the probability (p value) that the observed number of events is due to random fluctuations in the background.
Prospects for identifying the sources of the Galactic cosmic rays with IceCube
Note that there will also be a large number of background events in the detector and one has to find the signal by looking at excess of events above the fluctuations in the background.
Effect of Collective Flavor Oscillations on the Diffuse Supernova Neutrino Background
At even higher energies the background flux decreases quickly and therefore the signal-tobackground ratio improves, but the signal rate then also decreases (as 1/m3/2 ), making detection more difficult.
Unstable Gravitino Dark Matter and Neutrino Flux
Progress in signal processing from segmented Gediode detectors potentially offers significant benefits in rejecting backgrounds, reducing sensitivity of the experiment to backgrounds, and providing additional handles on both signals and backgrounds through multi-dimensional event reconstruction.
The Majorana Neutrinoless Double-Beta Decay Experiment
These techniques rely on the different spatial distributions of energy deposition between double-beta decay events and most background signals.
The Majorana Neutrinoless Double-Beta Decay Experiment
Background signals arising from radioactive decay often include a beta and one or more γ rays.
The Majorana Neutrinoless Double-Beta Decay Experiment