面向多飞行器接入的分层功率分配方法

he demand for access to low-orbit satellites (LEO) and near-space vehicles (NSVs) has surged to ten-thousand-level degree. To increase system access capacity, this letter studies a new network of dome phased array base stations accessing multiple spacecraft operating on different orbits in single beam. Since the user's orbit changes in kilometers, the signal at the receiver differs by multiple orders of magnitude and fluctuates significantly, which can cause the failure of the remote user connection. To solve this problem, this letter proposes a layered power allocation scheme. By grouping users, inter-layer exponential regulation is used to mitigate the $km$-level distance difference and intra-layer user power allocation derives a power closed-form solution using relaxation variables, quadratic transformation. The proposed scheme is deployed in the “GW” or “Starlink” access dome base station scenario. The experimental results show that the proposed scheme significantly improves the access capacity in a single beam compared with the traditional scheme.