Results 11 to 20 of about 1,583 (182)

A Nonlinear Transform-Based Variability Index CFAR Detector for Doppler-Extended Targets [PDF]

open access: yesSensors
In frequency-modulated continuous-wave (FMCW) radar systems, the detection of Doppler-extended targets (DETs) is a critical challenge. The micro-Doppler effects induced by the motion of extended targets such as pedestrians cause the echo energy to spread
Lin Cao   +4 more
doaj   +2 more sources

Adaptive Constant False Alarm Detector Based on Composite Fuzzy Fusion Rules

open access: yesApplied Sciences
In order to improve the detection performance of the radar constant false alarm detector in a multiple-target environment, a Kaigh–Lachenbruch Quantile constant false alarm rate detector based on composite fuzzy fusion rules (CFKLQ-CFAR) is designed by ...
Yuyao Yang, Chunbo Xiu
doaj   +2 more sources

The improved constant false alarm rate detector based on multi‐frame integration for fluctuating target detection in heavy‐tailed clutter

open access: yesIET Signal Processing, 2023
In this paper, attention is devoted to the analysis of the detection threshold based on the multi‐frame integration in heavy‐tailed clutter for the radar with high resolution and even smaller grazing angle.
Chenghu Cao, Yongbo Zhao
doaj   +2 more sources

Multiple Targets CFAR Detection Performance Based on an Intelligent Clustering Algorithm in K-Distribution Sea Clutter [PDF]

open access: yesSensors
Maintaining a Constant False Alarm Rate (CFAR) in the presence of K-distributed sea clutter is vital due to the dynamic and unpredictable nature of maritime environments.
Mansoor M. Al-dabaa   +4 more
doaj   +2 more sources

An Energy Detection Algorithm with Clustering-Based False Alarm Suppression for Magnetic Anomaly Detection [PDF]

open access: yesSensors
To overcome the limitations of Orthonormal Basis Function (OBF) methods in magnetic anomaly detection, including high false alarm rates and ambiguous target localization due to background noise, this paper introduces a high-confidence detection algorithm
Jinghua Yu, Changping Du, Xiang Peng
doaj   +2 more sources

False Alarm Analysis of the CATM-CFAR in Presence of Clutter Edge

open access: yesRadioengineering, 2014
This paper presents a false alarm analysis of the cell-averaging-trimmed-mean constant false alarm rate (CATM-CFAR) detector in the presence of clutter edge. Structure of the CATM-CFAR detector is described briefly.
D. Ivković, M. Andrić, B. Zrnić
doaj   +1 more source

Adaptive frequency-domain CFAR for robust spectrum sensing under jamming and administrator-controlled counter-access [PDF]

open access: yesScientific Reports
Cognitive radio networks (CRN) enable secondary users (SUs) to opportunistically access underutilized licensed spectrum while protecting primary users (PUs) from interference.
Mohamed Salah Shams   +3 more
doaj   +2 more sources

A Constant False Alarm Rate Detection Method for Sonar Imagery Targets Based on Segmented Ordered Weighting

open access: yesJournal of Marine Science and Engineering
Achieving reliable target detection in the field of sonar imagery represents a significant challenge due to the complex underwater interference patterns characterized by speckle noise, tunnel effects, and low-signal-to-noise ratio (SNR) environments ...
Wankai Na   +5 more
doaj   +2 more sources

Wilcoxon Nonparametric CFAR Scheme for Ship Detection in SAR Image

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The parametric constant false alarm rate (CFAR) detection algorithms, which are based on various statistical distributions, such as Gaussian, Gamma, Weibull, log-normal, $G^{0}$, and alpha-stable distribution, are most widely used to detect the ship ...
Xiangwei Meng
doaj   +4 more sources

Constant false alarm rate (CFAR) detection based estimators with applications to sparse wireless channels [PDF]

open access: yes, 2006
We provide Constant False Alarm Rate (CFAR) based thresholding methods for training based channel impulse response (CIR) estimation algorithms for communication systems which utilize a periodically transmitted training sequence within a continuous stream of information symbols. After obtaining the CIR estimation by using known methods in the literature,
Karaca, Ümit
core   +4 more sources

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