Results 51 to 60 of about 6,791,449 (184)

Graph‐Based Spectrum Sensing via Quadratic Form of Adjacency Matrix

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This graphical abstract presents a graph‐signal‐processing‐based spectrum sensing algorithm for robust primary user detection at low signal‐to‐noise ratios (SNR). The observed signal is preprocessed via power spectrum calculation and block summation, and then transformed into a graph.
Yan Gao, Guobing Hu, Yunfei Chen
wiley   +1 more source

Hypothesis testing and decision making: Constant-false-alarm-rate detection

, 2009
Detection is the first task in establishing a communication link, or tracking a target with a radar system. This is a decision-making problem, and it is performed through a hypothesis-testing procedure.
Sevgi, Levent
core   +1 more source

Improving Of IS-CFAR Using Wavelet De-Noising For Smoothing The Noise In Reference Cells

Journal of Engineering and Sustainable Development, 2014
Constant false alarm rate (CFAR) algorithms allow RADAR systems to set detection thresholds and isolated the target from noise or clutter to keeping the false alarm rate at certain level.
Hadi Jameel Hadi, Waleed Khalid Abed Ali   +1 more
doaj  

Detection of Unknown Radar Pulses Using Spiking Neural Networks

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This article proposes to use spiking neural networks (SNNs) to detect multiple pulses in observation windows from a superheterodyne receiver. The method is described from encoding to postprocessing. New metrics are introduced to compare the proposed detection method to the energy detector (ED), to a detection based on difference Of boxes (DOB) filters ...
Alexia Tachet, Fabrice Comblet, Ali Khenchaf   +2 more
wiley   +1 more source

A Novel iTransformer-Based Approach for AIS Data-Assisted CFAR Detection

Journal of Marine Science and Engineering
Detection of small vessels is of great significance for maritime safety assurance, abnormal vessel tracking, illegal fishing supervision, and combating smuggling.
Yongfeng Suo, Zhenkai Yuan, Lei Cui, Gaocai Li, Mei Sun   +4 more
doaj   +1 more source

MIMO Radar Detection Algorithms With Location Capabilities for Heterogeneous Environments

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
The design of adaptive detection and localisation algorithms in the context of MIMO radars is still an untraveled research route. In this paper, we present new decision schemes for MIMO radars capable of estimating, as a byproduct, the scatterer positions within the range‐Doppler bin under test and that can operate in both homogeneous and heterogeneous
Tianqi Wang, Chaoran Yin, Da Xu, Chengpeng Hao, Danilo Orlando, Giuseppe Ricci   +5 more
wiley   +1 more source

Wavelength-resolution SAR change detection with constant false alarm rate

, 2017
The paper introduces an incoherent change detection algorithm with constant false alarm rate (CFAR). The algorithm is based on a CFAR detector that preceded with an adaptive noise smoothing filter while the input of the filter is preliminary changes ...
Viet T. Vu, Patrik Dammert, Mats Pettersson, Dammert, Patrik,, Natanael R. Gomes, Hellsten, Hans,, Gomes, Natanael,, Vu, Viet Thuy,, Hans Hellsten, Pettersson, Mats,   +9 more
core   +1 more source

GNSS Spoofing Detection Based on Ionospheric Model Deviation Monitoring

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
The deviation of TEC (DTEC) consistency between DF measurements and empirical model estimations in authentic scenarios is not zero but is predictable through ionospheric annual periodicity. However, DF spoofers typically struggle to accurately counterfeit the authentic TEC value, which can disrupt the consistency between DTEC measurements and ...
Xiaoxuan Xu, Haixuan Fu, Zhenyang Wu, Yuhao Xiao, Hong Li   +4 more
wiley   +1 more source

Joint Target Discrimination and Ambiguity Resolution for Airborne Radar via Physics‐Guided Spatio‐Temporal Transformer

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
Traditional ambiguity resolution methods relying on local decision mechanisms and idealised numerical rules are prone to performance degradation in complex scenarios characterised by low SNR and dense residual clutter. To address this limitation, this paper proposes a physics‐guided spatio‐temporal transformer (PG‐STT) algorithm, where physically ...
Yuxin Zuo, Qicheng Wang, Hua Jing, Zhaolei Liu   +3 more
wiley   +1 more source

Constant false alarm rate detection of pipeline leakage based on acoustic sensors

, 2023
During the transportation of oil and gas pipelines, there are many potential factors that can lead to pipeline leakage with serious consequences, making automatic and real-time pipeline leakage detection urgent. In response to the inconvenience of manual
Yanbing Li, Zuheng Huang, Guorui An
core   +1 more source