Relay Mirror System with Vortex Source and Phase Optimization
H-Y. Wu , H-T. Ma, X-J. Xu and J-B. Chen
Improving performance of beam uplink propagation is a critical work in the relay mirror system. In this paper we present a method to improve performance of beam uplink propagation in the relay mirror system by using vortex source and phase optimization. Model of a 30 km altitude relay mirror system with vortex source is established, phase distribution of the source is optimized by using the stochastic parallel gradient descent algorithm. Performances of beam uplink propagation in the relay mirror system with different beam sources are calculated. Results show that performances of beam uplink propagation in the relay mirror system can be significantly improved by using a flat-vortex beam source and optimizing phase distribution at the source plane.
Keywords: Relay mirror system, vortex beams, phase optimization, uplink propagation