A5100635902- Advanced SAR Imaging Techniques
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Particle accelerators and beam dynamics
- Microwave Imaging and Scattering Analysis
- Particle Accelerators and Free-Electron Lasers
- Radar Systems and Signal Processing
- Magnetic confinement fusion research
- Geophysics and Sensor Technology
- Underwater Acoustics Research
- Advanced Decision-Making Techniques
- Engineering and Test Systems
- Geotechnical Engineering and Soil Mechanics
- Chemical Looping and Thermochemical Processes
- Spacecraft Design and Technology
- Aerospace Engineering and Energy Systems
- Neutrino Physics Research
- Planetary Science and Exploration
- Electromagnetic Launch and Propulsion Technology
- Carbon and Quantum Dots Applications
- GNSS positioning and interference
- Geotechnical Engineering and Soil Stabilization
- Engineering Applied Research
- Sensor Technology and Measurement Systems
- Atomic and Subatomic Physics Research
- Innovations in Concrete and Construction Materials
Nanjing University of Science and Technology
2015-2020
Institute of Modern Physics
2018
Chinese Academy of Sciences
2018
China Meteorological Administration
2014
National Engineering Research Center of Electromagnetic Radiation Control Materials
2014
National University of Defense Technology
2014
National University of Singapore
2013
Hunan University of Arts and Science
2007
This study deals with the imaging problem of one‐stationary bistatic forward‐looking synthetic aperture radar (BFSAR). BFSAR has extensive potential applications, such as self‐navigation and self‐landing in airport. However, (or squint) angle is usually large BFSAR. It causes range migration strong dependence on secondary compression term. Therefore it difficult to use traditional algorithms focus To solve this problem, an algorithm based squint minimisation method proposed study. The...
This study introduces some innovations in the data processing algorithm for Chinese FY meteorological satellites. Issues about satellite image navigation, radiation calibration, and assimilation are discussed. A time series of earth’s disk center-line count provides information on orientation spin axis. With this information, altitude parameters then earth location south-north direction may be solved. In each cycle, views sun earth. Given position altitude, angle (β) subtended at by can...
A new focusing solution for one‐stationary bistatic forward‐looking synthetic aperture radar (BFSAR) is presented in this study. Due to the potential applications of BFSAR, such as aircraft self‐landing, missile terminal guidance, BFSAR technique receives considerable attention. However, system usually has a large (or squint) angle. It brings severe range cell migration and strong dependence effective frequency‐modulation rate. Therefore, depths traditional imaging algorithms, Doppler...
Nowadays, many airports have already equipped landing aid system. However, the system can not provide image view of runway with potential obstructions. Considering Digital Video Broadcast-satellite (DVB-S) has a large signal bandwidth and wide coverage, we develop bistatic forward-looking synthetic aperture radar (BFSAR) using DVB-S as illuminator for aircraft navigation. We call developed BFSAR. This study will analyze properties signal, noise ratio (SNR) imaging resolution proposed passive...
This paper reports a fundamental investigation on the effect of phase difference (φ) between flapping motion forewing and hindwing lift thrust generation two-dimensional (2D) tandem wings in forward flight condition at Reynolds number 5,000. Force sensor was used to measure time-dependent aerodynamic forces acting two wings, digital particle image velocimetry (DPIV) technique employed obtain associated vorticity field flow structures. Three cases were studied, namely 0 (in-phase), 90 180...
Forward-Iooking imaging has many potential applications, such as self-landing, navigation, etc. This paper shows a modified hyperbolic approximating method for bistatic forward-looking SAR imaging. Compared with the original approximating, can handle geometry better and make equivalent range history more accurate. Based on method, Omega-k algorithm is deduced. Finally, numerical simulations are used to validate proposed algorithm.
In this paper, the theoretical aspects behind longitudinal RF capture are reviewed and process is simulated via a program based on theory. Four kinds of cases with different initial distribution curve considered, i.e. uniform adiabatic capture, non-adiabatic Gaussian capture. The simulation results compared each other discussed, demonstrated having higher efficiency leading to shorter bunch length. addition, BPM induced signal high input impendence, $1M\Omega$, low $50\Omega$, respectively....