Results 21 to 30 of about 343 (132)

An Adaptive OFDM Detection Strategy for Range and Doppler Spread Targets in Non-Gaussian Clutter

open access: yesIEEE Access, 2018
Orthogonal frequency division multiplexing (OFDM) radar can obtain higher target detection performance than traditional single carrier frequency radar due to simultaneously multiple frequency measurements.
Zhen Du, Zenghui Zhang, Wenxian Yu
doaj   +1 more source

A Fast Blind Detection Algorithm for Outdoor Visible Light Communications

open access: yesIEEE Photonics Journal, 2015
In this paper, we consider an outdoor visible light communication system, in which on-off keying (OOK) modulation is utilized through an atmospheric turbulence-induced slow-fading channel. A new fast blind detection algorithm is proposed by following the
Yi-Jun Zhu   +3 more
doaj   +1 more source

An Augmented Generalized Likelihood Ratio Test Detector for Signal Detection in Clutter and Noise

open access: yesIEEE Access, 2019
To deal with the problem of signal detection in correlated subspace, this paper presents an augmented generalized likelihood ratio test (AGLRT) detector.
Hui Tang, Li Chai, Xianrong Wan
doaj   +1 more source

Adaptive subspace detection based on two-step dimension reduction in the underwater waveguide

open access: yesDefence Technology, 2021
In the underwater waveguide, the conventional adaptive subspace detector (ASD), derived by using the generalized likelihood ratio test (GLRT) theory, suffers from a significant degradation in detection performance when the samplings of training data are ...
De-zhi Kong   +3 more
doaj   +1 more source

Moving Target Detection Using Distributed MIMO Radar Based on Low-bit Quantization under the Background of Generalized Gaussian Noise

open access: yesLeida xuebao
Signal-level cooperative detection based on multichannel observations is a pivotal technique in distributed Multiple-Input Multiple-Output (MIMO) radar for probing targets via the joint processing of multiple echo channels.
Qunfeng DU   +4 more
doaj   +1 more source

One-Bit Quantization and Distributed Detection with an Unknown Scale Parameter

open access: yesAlgorithms, 2015
We examine a distributed detection problem in a wireless sensor network, where sensor nodes collaborate to detect a Gaussian signal with an unknown change of power, i.e., a scale parameter.
Fei Gao, Lili Guo, Hongbin Li, Jun Fang
doaj   +1 more source

New Findings on GLRT Radar Detection of Non-Fluctuating Targets via Phased Arrays

open access: yesIEEE Access, 2021
This paper addresses the standard generalized likelihood ratio test (GLRT) detection problem of weak signals in background noise. In so doing, we consider a non-fluctuating target embedded in complex white Gaussian noise (CWGN), in which the amplitude of
Fernando Dario Almeida Garcia   +2 more
doaj   +1 more source

Robust Spectrum-Based Comparison of Multivariate Complex Random Signals

open access: yesIEEE Access, 2019
We consider the problem of comparing two complex multivariate random signal realizations, possibly contaminated with additive outliers, to ascertain whether they have identical power spectral densities.
Jitendra K. Tugnait
doaj   +1 more source

Statistical Resolution Limit Analysis of Two Closely Spaced Signal Sources Using Rao Test

open access: yesIEEE Access, 2017
High computational complexity and difficulty in taking an analytical expression of detection statistics are some of the problems encountered when using the statistical resolution limit (SRL) analysis in the generalized likelihood ratio test (GLRT). A Rao
Minhong Sun   +3 more
doaj   +1 more source

Adaptive CUSUM Chart for Simultaneous Monitoring of Mean and Variance

open access: yesQuality and Reliability Engineering International, EarlyView.
ABSTRACT Simultaneously monitoring changes in both the mean and variance is a fundamental problem in statistical process control, and numerous methods have been developed to address it. However, many existing approaches face notable limitations: Some rely on tuning parameters that can significantly affect performance; others are biased toward detecting
Gokul Parakulum, Jun Li
wiley   +1 more source

Home - About - Disclaimer - Privacy