Results 21 to 30 of about 360 (149)

A Novel Method for Improving Quality of Oblique Incidence Sounding Ionograms Based on Eigenspace-Based Beamforming Technology and Capon High-Resolution Range Profile

Remote Sensing, 2022
Ground-based oblique incidence sounding (OIS) is an important means to investigate the ionosphere. As the OIS ionogram is a visual representation of the OIS parameters, such as group distance and maximum usable frequency (MUF), it is of great ...
Wuyong Zhang, Tongxin Liu, Guobin Yang, Chunhua Jiang, Yaogai Hu, Ting Lan, Zhengyu Zhao   +6 more
doaj   +2 more sources

Time-Frequency Analysis and Target Recognition of HRRP Based on CN-LSGAN, STFT, and CNN

Complexity, 2021
Aiming at the problem of radar target recognition of High-Resolution Range Profile (HRRP) under low signal-to-noise ratio conditions, a recognition method based on the Constrained Naive Least-Squares Generative Adversarial Network (CN-LSGAN), Short-time ...
Jianghua Nie, Yongsheng Xiao, Lizhen Huang, Feng Lv   +3 more
doaj   +2 more sources

Precision Imaging of Frequency Stepped SAR with Frequency Domain Extracted HRRP and Fast Factorized Back Projection Algorithm

International Journal of Antennas and Propagation, 2017
Novel frequency domain extracted method (FDEM) to obtain high range resolution profile (HRRP) for frequency stepped synthetic aperture radar (SAR) is proposed in this paper, and the mathematical principle and formulas of this new HRRP obtaining idea ...
Can-bin Yin, Da Ran
doaj   +2 more sources

Space Target Tracking with the HRRP Characteristic-Aided Filter via Space-Based Radar

Remote Sensing, 2023
Approaching space target tracking is a typical and challenging mission in the space situational awareness (SSA) field. As the space-based radar is able to monitor the space targets of interest full-weather all-time, the space-based radar system is ...
Shuyu Zheng, Libing Jiang, Qingwei Yang, Yingjian Zhao, Zhuang Wang   +4 more
doaj   +2 more sources

Radar HRRP Modeling using Dynamic System for Radar Target Recognition

Radioengineering, 2014
High resolution range profile (HRRP) is being known as one of the most powerful tools for radar target recognition. The main problem with range profile for radar target recognition is its sensitivity to aspect angle. To overcome this problem, consecutive
A. Ajorloo, M. Hadavi, M. H. Bastani, M. M. Nayebi   +3 more
doaj   +1 more source

Scattering Mechanism Identification Based on Polarimetric HRRP of Manmade Target

Leida xuebao, 2016
In this paper, we analyze the space polarization and frequency dispersion characteristics of the polarimetric High Resolution Range Profile (HRRP) of manmade targets.
Wu Jiani, Chen Yongguang, Dai Dahai, Pang Bo, Wang Xuesong   +4 more
doaj   +2 more sources

HRRPGraphNet++: Dynamic Graph Neural Network with Meta-Learning for Few-Shot HRRP Radar Target Recognition

Remote Sensing
High-Resolution Range Profile (HRRP) radar recognition suffers from data scarcity challenges in real-world applications. We present HRRPGraphNet++, a framework combining dynamic graph neural networks with meta-learning for few-shot HRRP recognition.
Lingfeng Chen, Zhiliang Pan, Qi Liu, Panhe Hu   +3 more
doaj   +2 more sources

Dual-band polarimetric HRRP recognition via a brain-inspired multi-channel fusion feature extraction network. [PDF]

Front Neurosci, 2023
Radar high-resolution range profile (HRRP) provides geometric and structural information of target, which is important for radar automatic target recognition (RATR).
Yang W, Zhou Q, Yuan M, Li Y, Wang Y, Zhang L.   +5 more
europepmc   +3 more sources

Limited Sample Radar HRRP Recognition Using FWA-GAN

Remote Sensing
In radar High-Resolution Range Profile (HRRP) target recognition, the targets of interest are always non-cooperative, posing a significant challenge in acquiring sufficient samples.
Yiheng Song, Liang Zhang, Yanhua Wang
doaj   +2 more sources

An Interpretable Target-Aware Vision Transformer for Polarimetric HRRP Target Recognition with a Novel Attention Loss

Remote Sensing
Polarimetric high-resolution range profile (HRRP), with its rich polarimetric and spatial information, has become increasingly important in radar automatic target recognition (RATR).
Fan Gao, Ping Lang, Chunmao Yeh, Zhangfeng Li, Dawei Ren, Jian Yang   +5 more
doaj   +2 more sources