Results 31 to 40 of about 66,153 (261)

Multiple hypothesis S‐dimensional assignment algorithm for data association of angle‐only sensors with limited fields of view

open access: yesIET Radar, Sonar & Navigation, 2022
This paper focuses on how to obtain globally optimal multisensor data association results under the condition that the number of targets is unknown. This problem is likely to occur in scenarios where the sensors’ fields of view (FoVs) are limited.
Feng Ma   +3 more
doaj   +1 more source

Adversarial Patch Attack on Multi-Scale Object Detection for UAV Remote Sensing Images

open access: yesRemote Sensing, 2022
Although deep learning has received extensive attention and achieved excellent performance in various scenarios, it suffers from adversarial examples to some extent. In particular, physical attack poses a greater threat than digital attack.
Yichuang Zhang   +6 more
doaj   +1 more source

Independent Random Recurrent Neural Networks for Infrared Spatial Point Targets Classification

open access: yesApplied Sciences, 2019
Exo-atmospheric infrared (IR) point target discrimination is an important research topic of space surveillance systems. It is difficult to describe the characteristic information of the shape and micro-motion states of the targets and to discriminate ...
Dongya Wu   +3 more
doaj   +1 more source

Analysis and Design of M-Channel Hybrid Filter Bank With Digital Calibration

open access: yesIEEE Access, 2018
Hybrid filter bank (HFB) is widely used in frequency-interleaved analog-to-digital converters, but traditional HFB structures suffer various degrees of imperfections. This paper presents a new-structure HFB based on power complementary pair. The proposed
Xiangyu Peng   +4 more
doaj   +1 more source

Range migration compensation for moving targets in chirp radars with stepped frequency

open access: yesThe Journal of Engineering, 2019
Long-time coherent pulse integration method has been extensively used in detecting weak targets, but the detection performance is affected by range migration (RM) due to high radial velocity.
Wang Sen, Bao Qinglong, Chen Zengping
doaj   +1 more source

R2FA-Det: Delving into High-Quality Rotatable Boxes for Ship Detection in SAR Images

open access: yesRemote Sensing, 2020
Recently, convolutional neural network (CNN)-based methods have been extensively explored for ship detection in synthetic aperture radar (SAR) images due to their powerful feature representation abilities.
Shiqi Chen, Jun Zhang, Ronghui Zhan
doaj   +1 more source

Radar Target Localization with Multipath Exploitation in Dense Clutter Environments

open access: yesApplied Sciences, 2023
The performance of classic radar geometry based on the line-of-sight (LOS) signal transmitted from radar to the target in the free space is affected by multipath echoes in urban areas, where non-line-of-sight (NLOS) signals reflected by obstacles are ...
Rui Ding   +3 more
doaj   +1 more source

Inverse Synthetic Aperture Radar Imaging of Targets with Complex Motion based on Optimized Non-Uniform Rotation Transform

open access: yesRemote Sensing, 2018
Focusing on the inverse synthetic aperture radar (ISAR) imaging of targets with complex motion, this paper proposes a modified version of the Fourier transform, called non-uniform rotation transform, to achieve cross-range compression.
Wenzhen Wu   +4 more
doaj   +1 more source

Bathymetric-Based Band Selection Method for Hyperspectral Underwater Target Detection

open access: yesRemote Sensing, 2021
Band selection has imposed great impacts on hyperspectral image processing in recent years. Unfortunately, few existing methods are proposed for hyperspectral underwater target detection (HUTD).
Jiahao Qi   +6 more
doaj   +1 more source

Joint Tracking and Classification of Multiple Targets with Scattering Center Model and CBMeMBer Filter

open access: yesSensors, 2020
This paper deals with joint tracking and classification (JTC) of multiple targets based on scattering center model (SCM) and wideband radar observations.
Ronghui Zhan, Liping Wang, Jun Zhang
doaj   +1 more source

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