A5088856547- Radio Astronomy Observations and Technology
- Adaptive optics and wavefront sensing
- Antenna Design and Optimization
- Advanced optical system design
- Optical Systems and Laser Technology
- Advanced Fiber Laser Technologies
- Superconducting and THz Device Technology
- Structural Analysis and Optimization
- Soil Moisture and Remote Sensing
- Advanced Measurement and Metrology Techniques
- Advanced Antenna and Metasurface Technologies
Purple Mountain Observatory
2022-2025
Nanjing University of Science and Technology
2023-2025
University of Science and Technology of China
2022-2025
The phase adaptive stabilization system (PASS), functioning as an optics of radio frequency (RF), is a key technology for achieving the next generation single-dish submillimeter-wave (sub-mm) telescopes. However, PASS has not yet achieved closed loop measurement and correction in real-time. Furthermore, presence systematic errors hinders system's practical implementation. Here we have successfully established closed-loop both laboratory outfield. been experimentally proven to be sufficiently...
Large-aperture, single-dish, submillimeter (sub-mm)-wave telescopes are important to our understanding of the universe, but it is a long-term outstanding challenge make single-dish sub-mm larger while keeping high accuracy their surfaces. A bottleneck in context size and operating wavelengths such deterioration wavefront errors (phase shift) due deformation reflective Here proposed phase adaptive stabilization system (PASS), functioning as an optics radio frequency (RF), essential tool for...
Enlarging antenna diameter while maintaining an accurate reflective surface is important in the development of next-generation single-dish sub-mm telescopes. In this article, we propose emulation and optimization method active system (EOMASS) for large The proposed involves three main steps: 1) building model (ASSM) based on whole finite element (FEM) telescope, which includes reflector, realistic adjustment models actuators, backup structure so on; 2) emulating deformation compensation...
The optimization of the elevation rotation structure (ERS) is one critical problems in design a large submillimeter telescope (LST). Here, combining super element model with topology method and genetic algorithm (SEMTOMGA) proposed for ERS an LST. SEMTOMGA has three key steps: (1) applied to condensing all degrees freedom elements, which needs no optimization, except connecting nodes objective elements; (2) optimizing structure; (3) based on results second step, further whole multiobjective...
The correction of deterioration wavefront errors the large-aperture, high-accuracy radio telescope due to deformation reflective surfaces is an important issue. actuator sub-module active surface system directly determines stability and accuracy correction. Here presented for system, experimental study performance analysis are carried out. results show that can effectively improve