Micro-vibration simulation of laser communication satellite subjected to the disturbance of momentum wheels

Abstract

As the laser gradually replaces the microwave for satellite communication, micro-vibration environment of satellites in orbit become the key factor to keep laser link and communication quality. Due to the limited use of vibration suppression measures, micro-vibration simulation covering the whole frequency range up to 1000 Hz is required for laser communication satellites, which is inevitably more difficult than optical satellites focusing on low-frequency characteristics. This paper proposes an engineering algorithm that can quickly and efficiently simulate the micro-vibration environment of satellites within 1000Hz, and the simulation results are confirmed by experimental data.