A5101506365- Advanced SAR Imaging Techniques
- Radar Systems and Signal Processing
- Microwave Imaging and Scattering Analysis
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Geophysical Methods and Applications
- Advanced Neural Network Applications
- Autonomous Vehicle Technology and Safety
- Optical Systems and Laser Technology
- Antenna Design and Optimization
- Control Systems in Engineering
- Technology and Security Systems
- Electronic Packaging and Soldering Technologies
- Advanced Measurement and Detection Methods
- Spacecraft and Cryogenic Technologies
- Innovative concrete reinforcement materials
- Ultrasonics and Acoustic Wave Propagation
- Wireless Signal Modulation Classification
- Ocean Waves and Remote Sensing
- Simulation and Modeling Applications
- Advanced Sensor and Energy Harvesting Materials
- Geoscience and Mining Technology
- Underwater Acoustics Research
- Hydraulic and Pneumatic Systems
- Sparse and Compressive Sensing Techniques
- Medical Image Segmentation Techniques
Linyi University
2024
North Carolina State University
2021
University of Rochester
2021
Computational Physics (United States)
2021
GT Advanced Technologies (United States)
2014
Shanghai Institute of Technical Physics
2012
National University of Defense Technology
2009-2011
Air Force Engineering University
2011
Gansu Coalfield Geology Bureau
2009
This paper proposes a novel multisite radar system (MSRS) with multiple-input and multiple-output (MIMO) radars, i.e., MIMO-MSRS system, to improve the detection performance of fluctuating targets. The proposed increases local signal-to-noise ratio (SNR) by using digital beamforming (DBF) among all transmitting receiving channels in single site. Then it smoothes target's fluctuation via spatial diversity DBF outputs different sites. For we derive likelihood test (LRT) detector at first based...
Along-track multichannel synthetic aperture radar is usually used to achieve ground moving target detection and imaging. Nevertheless, there a design dilemma between azimuth high resolution wide swath (HRWS). To solve this problem in HRWS mode, we introduce virtual (VMC) scheme. For each channel, the low real pulse repetition frequency (PRF) improves ability of resolving range ambiguity for wide-swath, PRF capability Doppler resolution. multiple channels, strong clutter eliminated by joint...
The multi-input multi-output synthetic aperture radar (MIMO-SAR) is an innovative concept, which can bring high degrees of freedom for SAR system with limited transmitting/ receiving (T/R) elements. In this paper, ground moving target indication (GMTI) MIMO-SAR studied based on reasonable usage the space-time equivalent samplings. Furthermore, paper gives a deep insight azimuth ¿spurious peaks¿ effect, caused by periodically modulated error signal due to radial velocity target. Also,...
Statistical multiple-input multiple-output (MIMO) radar may improve the fluctuated target detection by utilizing multiple separate transmitting and receiving elements. Nevertheless, power of single element is reciprocal to number, ultimate performance MIMO be inversely deteriorated with increase In this letter, optimal diversity DOF, i.e., elements, defined based on proposed likelihood ratio test (LRT) detectors. Furthermore, given false alarm probability probability, closed-form DOF...
The particle swarm optimizer algorithm (PSO) is a recently developed evolutionary search technique, In order to improve the precision of range alignment in ISAR data processing, new method presented based on optimizer. profile distance used as fitness function PSO searching motion parameters, which evaluate each individual target profiles, such case computational cost strongly reduced. experiment analysis simulation and real ship verify effectiveness novel algorithm.
In mineral, environmental, and engineering explorations, we frequently encounter geological bodies with varied sizes, depths, conductivity contrasts surround rocks try to interpret them single survey data. The conventional three-dimensional (3-D) inversions significantly rely on the size of grids, which should be smaller than smallest target achieve a good recovery anomalous electric conductivity. However, this will create large amount unknowns solved cost significant time memory. paper,...
A fast time-domain approach called factorized backprojection (FFBP) algorithm based on the subaperture processing and local beamforming is presented for bistatic forward-looking SAR (BFSAR) imaging. It not only precisely handles spatial-variance, serious range-azimuth coupling complicated motion errors, but also greatly improves imaging efficiency compared with (BP) algorithm. Besides, it requires from radar echoes as an intermediate stage in slant-range plane instead of ground plane, which...
This paper proposes a novel method for MIMO-SAR ground moving target imaging in HRWS Mode. In order to compensate the periodically modulated error signal Doppler history due radial velocity of target, compressed sensing theory is used estimate undersampled firstly. Then, compensation formed with radical remove whole signal. Finally, achieved by using focusing function target. The numerical experiments are provided demonstrate effectiveness proposed method.
User interface design for artistic expression based on bio-signals: an EEG feature extractions method weak periodic signal detection Lan Wu and Ali Akgunduz Decision-making in engineering -a call affective dimensions applied sciences
This paper introduces a high resolution imaging method, which is based on hybrid sampling of the airborne MIMO radar, combined single snapshot radar with synthetic aperture SAR. The method represents an equivalent array algorithm that PRF system can be reduced dramatically to conventional SAR, such large unambiguity areas we get. Numerical simulations are provided examine validity proposed method.
Estimating motion parameters of the maneuvering target is a difficult thing currently for most airborne synthetic aperture radar (SAR) due to complex motion, which usually results into defocus-blurred SAR image target. To avoid difficulty, this paper proposes high-resolution imaging method via multiple-input and multiple-output (MIMO) based on hybrid sampling procedure, where single snapshot MIMO are combined. Different from classical SAR, novel only compensates movement by geographic...