Results 81 to 90 of about 195,296 (230)

Sparse representation for the ISAR image reconstruction [PDF]

, 2016
In this paper, a sparse representation for the data form a multi-input multi-output based inverse synthetic aperture radar (ISAR) system is derived for two dimensions.
Hu, Mengqi
core   +1 more source

An Autofocus Technique for High-Resolution Inverse Synthetic Aperture Radar Imagery

IEEE Transactions on Geoscience and Remote Sensing, 2014
For inverse synthetic aperture radar imagery, the inherent sparsity of the scatterers in the range-Doppler domain has been exploited to achieve a high-resolution range profile or Doppler spectrum.
Lifan Zhao, Lu Wang, G. Bi, Lei Yang
semanticscholar   +1 more source

Efficient Raw Signal Generation Based on Equivalent Scatterer and Subaperture Processing for SAR with Arbitrary Motion [PDF]

, 2014
An efficient SAR raw signal generation method based on equivalent scatterer and subaperture processing is proposed in this paper. It considers the radar’s motion track, which can obtain the precise raw signal for the real SAR. First, the imaging geometry
An, D.X., Huang, X.T., Xie, H.T., Zhou, Z.M.   +3 more
core   +1 more source

Radar Imaging by Sparse Optimization Incorporating MRF Clustering Prior [PDF]

arXiv, 2018
Recent progress in compressive sensing states the importance of exploiting intrinsic structures in sparse signal reconstruction. In this letter, we propose a Markov random field (MRF) prior in conjunction with fast iterative shrinkagethresholding algorithm (FISTA) for image reconstruction.
arxiv  

Autofocus for inverse synthetic aperture radar (ISAR) imaging [PDF]

Autofocus is a key step of inverse synthetic aperture radar (ISAR) imaging. In this paper four new approaches to autofocussing based on the application of beamforming and subspace concepts to ISAR imaging are developed.
Bogner, R E, Gray, D A, She, Zhishun
core  

Persepsi pelajar sarjana muda kejuruteraan elektrik terhadap program latihan industri, Kolej Universiti Teknologi Tun Hussein Onn [PDF]

, 2002
Kajian ini dijalankan bertujuan untuk mengetahui persepsi Pelajar Sarjana Muda Kejuruteraan Elektrik Terhadap Program Latihan Industri, KUiTTHO berdasarkan kepada 4 faktor iaitu kesesuaian penempatan program latihan industri, kesesuaian pendedahan ...
Mohamad Nur, Hanirah
core  

Dual-functional microwave photonic system for concurrent radar and secure communication via radar signal masking [PDF]

arXiv
Integrating functions such as radar and communication into a single system is of great significance for the miniaturization and functional integration of future electronic warfare and 6G systems. Here, we show a dual-functional microwave photonic system for concurrent radar and secure communication.
arxiv  

Cross-range scaling method of inverse synthetic aperture radar image based on discrete polynomial-phase transform

, 2015
The cross-range scaling of inverse synthetic aperture radar image depends on both the radar wavelength and the rotating angle of the target relative to the radar line-of-sight.
Lei Liu, Feng Zhou, Mingliang Tao, Bo Zhao, Zi-jing Zhang   +4 more
semanticscholar   +1 more source

Inverse synthetic aperture radar imaging of targets with complex motion based on cubic Chirplet decomposition

IET Signal Processing, 2015
High resolution inverse synthetic aperture radar (ISAR) imaging of targets with complex motion is a main topic in the radar imaging domain. In fact, the traditional range-Doppler algorithm is not appropriate to generate a focused ISAR images because of ...
Yong Wang, Bin Zhao, Yi-Cheng Jiang
semanticscholar   +1 more source

Autofocus for inverse synthetic aperture radar (ISAR) imaging [PDF]

, 2001
Zhishun She, Douglas A. Gray, R.E. Bogner   +2 more
openalex   +1 more source