A Method of Determining Detection Threshold for Bayesian Track-before-detection in White Complex Gaussian Noise

2014 ◽  
Vol 35 (3) ◽  
pp. 524-531
Author(s):  
Shuang-zhi Xia ◽  
Feng-zhou Dai ◽  
Hong-wei Liu
Keyword(s):  
Gaussian Noise ◽  
Detection Threshold

scholarly journals Detection Thresholds and Bias Correction in Polarized Intensity

2012 ◽  
Vol 29 (3) ◽  
pp. 214-220 ◽  
Author(s):  
Samuel J. George ◽  
Jeroen M. Stil ◽  
Ben W. Keller
Keyword(s):  
Gaussian Noise ◽  
Bias Correction ◽  
Detection Rate ◽  
Detection Threshold ◽  
False Detection Rate ◽  
False Detection ◽  
Detection Thresholds ◽  
Detection Rates ◽  
Rotation Measure ◽  
Non Gaussian

AbstractDetection thresholds in polarized intensity and polarization bias correction are investigated for surveys where the polarization information is obtained from rotation measure (RM) synthesis. Considering unresolved sources with a single RM, a detection threshold of 8 σQU applied to the Faraday spectrum will retrieve the RM with a false detection rate less than 10−4, but polarized intensity is more strongly biased than Ricean statistics suggest. For a detection threshold of 5 σQU, the false detection rate increases to ∼4%, depending also on λ2 coverage and the extent of the Faraday spectrum. Non-Gaussian noise in Stokes Q and U due to imperfect imaging and calibration can be represented by a distribution that is the sum of a Gaussian and an exponential. The non-Gaussian wings of the noise distribution increase the false detection rate in polarized intensity by orders of magnitude. Monte Carlo simulations assuming non-Gaussian noise in Q and U give false detection rates at 8 σQU similar to Ricean false detection rates at 4.9 σQU.

Detection threshold for electric shock in psychopaths.

1968 ◽  
Vol 73 (3, Pt.1) ◽  
pp. 268-272 ◽  
Author(s):  
Robert D. Hare
Keyword(s):  
Electric Shock ◽  
Detection Threshold

Signal Activity Detection of Offset-QPSK in Colored Gaussian Noise

2011 ◽  
Vol E94-A (11) ◽  
pp. 2226-2229
Author(s):  
Sayed Jalal ZAHABI ◽  
Mohammadali KHOSRAVIFARD ◽  
Ali A. TADAION ◽  
T. Aaron GULLIVER
Keyword(s):  
Gaussian Noise ◽  
Activity Detection ◽  
Signal Activity ◽  
Colored Gaussian Noise

On Resolution Algorithms for the Mixture of PM Signals in the Presence of Gaussian Noise

1998 ◽  
Vol 52 (1) ◽  
pp. 24-31
Author(s):  
A. V. Omel'chenko ◽  
A. A. Shapiro ◽  
F. V. Kivva
Keyword(s):  
Gaussian Noise
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