The Use of Parallel Processing to Achieve Decentralized Control of a Segmented Reflector Telescope

摘要

Control of large flexible structures such as segmented telescopes requires high computational power to achieve the desired performance in real-time. Through decentralized control, the overall structure can be controlled by multiple lower-order local controllers, leading to reduced computational complexities. In addition, the decentralized approach can both simplify the development of parallel programs and facilitate the study of fault-tolerant control systems. This paper describes the real-time embedded computing system to perform the control algorithms on a segmented reflector telescope test-bed. It also demonstrates the inherent link between decentralized control and concurrent processing by its parallel implementation.