A5082682012- Advanced SAR Imaging Techniques
- Photonic and Optical Devices
- Radar Systems and Signal Processing
- Advanced Optical Imaging Technologies
- Optical Systems and Laser Technology
- Wireless Signal Modulation Classification
- Smart Grid and Power Systems
- Visual perception and processing mechanisms
- Microwave Imaging and Scattering Analysis
- Power Systems and Renewable Energy
- Robotic Path Planning Algorithms
- Safety and Risk Management
- Geophysical Methods and Applications
- Underwater Acoustics Research
- Digital Holography and Microscopy
- Remote Sensing and LiDAR Applications
- Orbital Angular Momentum in Optics
- Photonic Crystals and Applications
- Target Tracking and Data Fusion in Sensor Networks
- Ocean Waves and Remote Sensing
Sun Yat-sen University
2023-2024
Anyang Institute of Technology
2016
Ubiquitous Radar has become an essential tool for preventing bird strikes at airports, where accurate target classification is of paramount importance. The working mode Radar, which operates in track-then-identify (TTI) mode, provides both tracking information and Doppler the recognition module. Moreover, main features target’s are concentrated around spectrum. This study innovatively used to generate a feature enhancement layer that can indicate area spectrum located combines it with RGB...
Due to the limited transmission gain of ubiquitous radar systems, it has become necessary use a long-time coherent integration method for range-Doppler (RD) analysis. However, when target exhibits high-speed and high-maneuver capabilities, introduces challenges, such as range migration (RM), Doppler frequency (DFM), velocity ambiguity (VA) in RD domain, thus posing significant difficulties detection tracking. Moreover, presence VA further complicates problem. To address these complexities...
Based on the characteristic of ubiquitous radar emitting low-gain wide beam, a method long-time coherent integration (LTCI) is required to enhance target detection capability. However, high-speed and highly maneuverable targets can cause Doppler frequency migration (DFM), range (RM), velocity ambiguity (VA), severely degrading performance LTCI. Additionally, number unknown variable, presence clutter further complicates tracking problem. To address these challenges, we propose hybrid achieve...
By simultaneously transmitting multiple different waveform signals, a multiple-input multiple-output (MIMO) radar possesses higher degrees of freedom and potential in many aspects compared to traditional phased-array radar. The spatial–temporal characteristics waveforms are the key determining their performance. In this paper, design method based on joint (STJ) optimization for MIMO is proposed, where designed not only beam-pattern matching (BPM) but also minimizing autocorrelation sidelobes...
Ubiquitous radar has significant advantages over traditional in detecting and identifying low, slow, small (LSS) targets a strong clutter environment. It effectively addresses challenges faced low-altitude target monitoring within the economy (LAE). The working mode of ubiquitous radar, which tracks first identifies later, provides high-resolution Doppler data to identification module. Utilizing allows for effective LSS targets. To meet needs real-time classification, this paper designs...
In recent years, augmented reality(AR) technology has gained much attention due to its disruptive and revolutionary nature. Thanks the advanced nano‐‐imprint lithographic technique, diffractive waveguide based display becomes research hotspot. There are three main types of including one dimension grating, two volume holography. this paper, we proposed that slant grating is used as in‐coupling out‐coupling so ratio area could be larger. We analyze orders in K domain. waveguide, uniformity...
Aiming to the demand and characteristics of vehicle scheduling optimization problem in emergency rescue, this paper establishes a multi-objective model, which takes minimizing variable bidirectional distance, path risk cost as target.To avoid prematurely falling into local ant colony system(ACS)algorithm, improve algorithm adaptability, computational efficiency quality optimal solution, proposed realized chaos-based improved system algorithm, can overall updates chaos disturbance...
Color rainbow holographic near-eye display with none-overlapping frequency components from color object has been proposed. The resolution, however, is low due to the very small bandwidth of information used in calculation. Numerical simulation methods for hologram calculation and that allow a certain overlap domain demonstrated this study improve image quality reconstructed hologram. Through optical experiments, it proved allowing higher recording can quality.
In recent years, augmented reality(AR) technology has gained much attention due to its disruptive and revolutionary nature. Thanks the advanced nano‐imprint lithographic technique, diffractive waveguide based display becomes research hotspot. There are three main types of including one dimension grating, two volume holography. this paper, we proposed that slant grating is used as in‐coupling outcoupling so ratio out‐coupling area could be larger. We analyze orders in K domain. waveguide,...