A5085221634- Space Satellite Systems and Control
- Control and Stability of Dynamical Systems
- Adaptive Control of Nonlinear Systems
- Antenna Design and Optimization
- Magnetic Bearings and Levitation Dynamics
- Stability and Control of Uncertain Systems
- Geophysics and Sensor Technology
- Advanced Optical Sensing Technologies
- Spacecraft Dynamics and Control
- Direction-of-Arrival Estimation Techniques
- Underwater Vehicles and Communication Systems
- Optical Wireless Communication Technologies
- Robotics and Sensor-Based Localization
- Speech and Audio Processing
- Astro and Planetary Science
- Advanced Fiber Optic Sensors
- Vibration Control and Rheological Fluids
Nanjing University of Aeronautics and Astronautics
2022
Shanghai Micro Satellite Engineering Center
2021-2022
Shanghai Academy of Spaceflight Technology
2021
The pose determination between nanosatellites and the cooperative spacecraft is essential for swarm in-orbit services. Time-of–flight (ToF) sensors are one of most promising to achieve tasks. This paper presented an end-to-end assessment how these were used estimation. First, embedded system was designed based on ToF camera with lasers as a driven light source. Gray depth images collected detect match in real time, obtaining information. A threshold-based segmentation proposed find small set...
In this letter, a novel direction-finding method with spatial spectrum estimation is proposed and verified, based on the time-modulated linear array (TMLA) single radio-frequency channel. Its principle as follows. The TMLA receives periodically modulates incident signal. After power combiner, modulated signal down-converted to intermediate frequency sampled in single-channel receiver. digital domain, manifold vector can be calculated from Fourier coefficients harmonic characteristic matrix...
This paper addresses the spacecraft attitude tracking control problem in presence of model uncertainties, external disturbances, and actuator saturation by proposing a finite-time controller integrated with an extended-state-observer (ESO). More specifically, view aforementioned drawbacks, dynamics are developed on Special Orthogonal group SO(3) directly, system total disturbance is reconstructed using anti-windup technique. It should be noted that singularities ambiguities associated other...
In order to provide an ultraquiet environment for spacecraft payload, a six‐degree‐of‐freedom microvibration isolation device satellite control moment gyro (CMG) is proposed in this paper. The dynamic characteristics of the are analyzed theoretically and experimentally. equations suppression established by using Newton–Euler method. responses numerically solved frequency‐domain under base excitation analyzed. analytical results first verified numerically, two good accordance. experimental...