Downlink Design and Operating Mode Optimization of Remote Sensing Satellite Data Transmission System

Abstract

With the rapid development of space technology, the design of satellite-ground links in the field of satellite communication system research has become one of the hot spots in the field of satellite communication research. A good link design provides a low BER transmission channel for satellite-ground information interaction and gives full play to the observation and communication capabilities of satellites. By designing the RF transmitting and receiving systems in the satellite-ground transmission link, the performance of the satellite-ground link can be predicted after the satellite is in orbit by considering the losses in the transmission path. The article illustrates the compression coding algorithm, modulation mode coding selection, link design and implementation from the subsystem level, which is a strong practical guidance for satellite data transmission subsystem link design and working mode selection.