Results 51 to 60 of about 2,572 (160)

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

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

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

Complementary Fusion of Motion‐Model and Data‐Extrapolation Strategies for Improved Angle Estimation in Shipborne HFSWR

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
Shipborne HFSWR has limited array aperture reducing DOA estimation accuracy. The proposed CFMDS method fuses motion‐model‐based and data‐extrapolation‐based strategies to enlarge the virtual aperture. Results show improved angle estimation performance compared to single‐strategy methods.
Youmin Qu, Ziyi Yang, Yan Zeng, Xingpeng Mao   +3 more
wiley   +1 more source

An Improved GLRT Method for Target Detection in SAR Imagery

MATEC Web of Conferences, 2015
Automatic ground vehicle detection based on SAR imagery is one of the important military applications of SAR. A region-based generalized likelihood ratio test (GLRT) method is proposed in this paper, and this method combines the GLRT detection theory and
Ju Yingyun, Fu Peng, Zhou Xin, Peng Rongkun   +3 more
doaj   +1 more source

Detection of Unresolved Targets for Wideband Monopulse Radar

Sensors, 2019
Detecting unresolved targets is very important for radars in their target tracking phase. For wideband radars, the unresolved target detection algorithm should be fast and adaptive to different bandwidths.
Tianyi Tsai, Zhiqiang Liao, Zhiquan Ding, Yuan Zhao, Bin Tang   +4 more
doaj   +1 more source

Multispectral Properties of Rocks in Marker Band Valley and Evidence for an Alteration Unit Below the Amapari Marker Band at Gale Crater, Mars

Journal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.
Abstract The Mars Science Laboratory rover, Curiosity, has been examining strata from a period of Martian history where extensive clay mineral formation transitioned to sulfate mineral formation. This mineralogic change corresponds to a change from a wetter to a more arid climate.
W. H. Farrand, A. M. Eng, A. R. Trussell, J. R. Johnson, J. F. Bell III, S. G. Banham, A. L. Roberts, L. M. Thompson, E. B. Rampe, C. J. Hardgrove, C. M. Fedo, A. A. Fraeman, C. M. Weitz   +12 more
wiley   +1 more source

Adaptive Moving Target Detection for Forward Scatter Radar When the Noise Power Mismatch Occurs

Electronics Letters, Volume 61, Issue 1, January/December 2025.
1. The problem of detecting moving targets with forward scatter radar is discussed. 2. The noise power mismatch, namely, the noise power in the secondary data and the noise power in the primary data differing by a noise‐scaling factor, is considered. 3.
Xiang Li, Zeyu Wang
wiley   +1 more source

A Novel Ship Detector Based on the Generalized-Likelihood Ratio Test for SAR Imagery

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2017
Ship detection with synthetic aperture radar (SAR) images, acquired at different working frequencies, is presented in this paper where a novel technique is proposed based on the generalized-likelihood ratio test (GLRT).
Pasquale Iervolino, Raffaella Guida
doaj   +1 more source

Adaptive Waveform Design with Multipath Exploitation Radar in Heterogeneous Environments

Remote Sensing, 2021
The problem of detecting point like targets over a glistening surface is investigated in this manuscript, and the design of an optimal waveform through a two-step process for a multipath exploitation radar is proposed.
Seden Hazal Gulen Yilmaz, Chiara Zarro, Harun Taha Hayvaci, Silvia Liberata Ullo   +3 more
doaj   +1 more source