Results 61 to 70 of about 41,591 (204)

Three‐dimensional interferometric inverse synthetic aperture radar imaging of ship target based on cubic phase signal model

IET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1691-1709, October 2024.
This paper proposes a three‐dimensional interferometric inverse synthetic aperture radar imaging algorithm for the ship targets based on the cubic phase signal (CPS) model. This method approximates the azimuth echo signal as a CPS and utilises the particle swarm optimisation algorithm to estimate the higher order phase coefficients.
Junting Yang, Yong Wang
wiley   +1 more source

Resolution and Micro-Doppler Effect in Bi-ISAR System (in English)

Leida xuebao, 2013
Compared to the monostatic radar, bistatic radar has many special characteristics because of its spatial complexity. Bistatic Inverse Synthetic Aperture Radar (Bi-ISAR) can be employed as a radar imaging tool for obtaining non-cooperative target images ...
Deng Dong-hu, Zhang Qun, Luo Ying, Li Song, Zhu Ren-fei   +4 more
doaj   +1 more source

GLRT‐based detection of targets composed of distributed scattering centres

IET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1767-1778, October 2024.
A new method is presented to distinguish between the distributed and centralised scattering centres which is helpful in automatic target recognition. Experimental results demonstrates the effectiveness of the proposed algorithm which is superior to existing methods.
Amir Mohammad Hatami, Seyyed Mohammad Karbasi, Mohammad Mahdi Nayebi   +2 more
wiley   +1 more source

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

Remote 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, Shiyou Xu, Pengjiang Hu, Jiangwei Zou, Zengping Chen   +4 more
semanticscholar   +1 more source

A novel motion compensation algorithm for spaceborne inverse synthetic aperture radar imaging of air target under low signal‐to‐noise ratio condition

IET Radar, Sonar &Navigation, Volume 18, Issue 9, Page 1444-1459, September 2024.
A novel translational motion compensation algorithm based on motion parameter estimation is proposed for spaceborne Inverse Synthetic Aperture Radar imaging of air target under low signal‐to‐noise ratio condition. The algorithm compensates for both distance migration and Doppler migration caused by the first‐order and second‐order motion components of ...
Yichen Zhou, Yong Wang
wiley   +1 more source

Performance Boundaries and Tradeoffs in Super-Resolution Imaging Technologies for Space Targets

Remote Sensing
Inverse synthetic aperture radar (ISAR) super-resolution imaging technology is widely applied in space target imaging. However, the performance limits of super-resolution imaging algorithms remain largely unexplored.
Xiaole He, Ping Liu, Junling Wang
doaj   +1 more source

An improved inverse synthetic aperture radar range alignment method based on maximum contrast

The Journal of Engineering, 2019
Inverse synthetic aperture radar (ISAR) is an important tool for non-cooperative ship imaging, and one key step of ISAR imaging is range alignment. To achieve the range alignment with high precision, efficiency and robustness, an improved ISAR range ...
Yong Li, Tianyi Zhang, Zegang Ding, Wenbin Gao, Jing Chen   +4 more
doaj   +1 more source

Adaptive soft threshold transformer for radar high‐resolution range profile target recognition

IET Radar, Sonar &Navigation, Volume 18, Issue 8, Page 1260-1273, August 2024.
Aiming to target areas localisation and background noise, a framework termed Adaptive Soft Threshold Transformer (ASTT) is proposed for radar HRRP target recognition, which comprises a PE layer, ASTT blocks, and DWPM layers. Experiments based on a simulated dataset and a measured dataset show that the proposed ASTT has excellent target recognition ...
Siyu Chen, Xiaohong Huang, Weibo Xu
wiley   +1 more source

Similarity‐oriented method for inverse synthetic aperture radar imaging with low signal‐to‐noise ratio

IET Radar, Sonar &Navigation, Volume 18, Issue 7, Page 1068-1079, July 2024.
A novel similarity‐oriented (SO) method with a two‐domain denoising strategy is proposed. A PIE‐SO (PIxEl Similarity‐Oriented) denoising method designed for range‐Doppler (RD) domain and a modified RAP‐SO (RAnge Profile Similarity‐Oriented) denoising method designed for high‐resolution range profile (HRRP) matrix are included in the presented framework.
Xinbo Xu, Qiang Zhang, Fulin Su, Jinshan Liu, Yuan Wen, Xinfei Jin, Hongxu Li   +6 more
wiley   +1 more source

Impact and Compensation of Rainfall Propagation Effect on Pol-ISAR Imaging of Parabolic Antenna

Remote Sensing
Orientation is an important parameter to identify the working status of a parabolic antenna. Polarimetric inverse synthetic aperture radar (Pol-ISAR) is an effective approach to sense the parabolic antenna, but the imaging process may be seriously ...
Xinjie Ju , Xinda Li, Lin Gan , Jiapeng Yin , Chun Shen , Jianbing Li    +5 more
doaj   +1 more source