Results 1 to 10 of about 854,084 (200)

A New Outer Bound and the Noisy-Interference Sum-Rate Capacity for Gaussian Interference Channels [PDF]

, 2007
A new outer bound on the capacity region of Gaussian interference channels is developed. The bound combines and improves existing genie-aided methods and is shown to give the sum-rate capacity for noisy interference as defined in this paper. Specifically,
Chen, Biao, Kramer, Gerhard, Shang, Xiaohu   +2 more
core   +1 more source

Detecting weak signals in high dimensions

Journal of Multivariate Analysis, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Detection of weak monocycle sinusoidal signals with a low constant false alarm rate based on the support vector machine

The Journal of Engineering, 2019
The detection of weak monocycle sinusoidal signals is the abstract problem of the weak transient signal detection in many engineering applications. A low constant false alarm rate is often required on some occasions with serious false alarm consequences,
Bo Tan, Jingbo Guo, Guang Chang
doaj   +1 more source

Can Anomalous Amplification be Attained Without Postselection? [PDF]

, 2016
We present a parameter estimation technique based on performing joint measurements of a weak interaction away from the weak-value-amplification approximation.
Howell, John C., Liu, Wei-Tao, Martínez-Rincón, Julián, Viza, Gerardo I.   +3 more
core   +3 more sources

Collection of remote optical signals by air waveguides

, 2014
Collection of weak signals from remote locations is the primary goal and the primary hurdle of optical stand-off detection schemes. Typically, the measured signal is enhanced using large numerical aperture collection optics and high gain detectors.
Jhajj, N., Milchberg, H. M., Rosenthal, E. W., Wahlstrand, J. K.   +3 more
core   +1 more source

Coherent Detection of Ultra-weak Electromagnetic Fields

, 2018
We explore the application of heterodyne interferometry for a weak-field coherent detection scheme. The methods detailed here will be used in ALPS II, an experiment designed to search for weakly-interacting, sub-eV particles.
Barke, Simon, Bush, Zachary R., Hallal, Ayman, Hollis, Harold, Messineo, Giuseppe, Mueller, Guido, Spector, Aaron D., Tanner, D. B.   +7 more
core   +1 more source

Cavity-free nondestructive detection of a single optical photon

, 2015
Detecting a single photon without absorbing it is a long standing challenge in quantum optics. All experiments demonstrating the nondestructive detection of a photon make use of a high quality cavity.
Johnsson, Mattias, Knight, Peter L., Twamley, Jason, Xia, Keyu   +3 more
core   +1 more source

Weak target detection technology of passive radar on the navigation satellite signal

The Journal of Engineering, 2019
The passive radar detection system receives secondary reflection signal by the navigation satellite signal. The secondary reflection signal is too weak to detect the target.
Xiaoyan Fan, She Shang, Dawei Song, Wenfeng Sun, Yuanyuan Wen   +4 more
doaj   +1 more source

Magnetic Anomaly Signal Detection Using Parallel Monostable Stochastic Resonance System

IEEE Access, 2020
The nonlinear stochastic resonance (SR) system possesses the ability of taking advantage of noise to enhance the weak signal when the SR system, signal and noise reach to the matching relation.
Wang Liu, Zhongyan Liu, Qi Zhang, Yujing Xu, Shuchang Liu, Zhuo Chen, Canlin Zhu, Ze Wang, Mengchun Pan, Jiafei Hu, Peisen Li   +10 more
doaj   +1 more source

Discovery of a very weak magnetic field on the Am star Alhena

, 2016
Alhena ($\gamma$ Gem) was observed in the frame of the BRITE (BRIght Target Explorer) spectropolarimetric survey, which gathers high resolution, high signal-to-noise, high sensitivity, spectropolarimetric observations of all stars brighter than V=4 to ...
Blazère, Aurore, Neiner, Coralie, Petit, Pascal   +2 more
core   +3 more sources