Design and Research of MEOSAR Ground Receiving Station in COSPAS-SARSAT

With the technology development for nearly 40 years, COSPAS-SARSAT is widely used in navigation, aviation, and personal distress rescue with the advantages of rapid response, high reliability and ease of use. Due to the technical limitations of the geostationary orbit satellite system and the insufficient space resources of the low earth orbit satellite system, the COSPAS-SARSAT has taken the medium earth orbit (MEO) satellite system as the development direction for the next generation. In order to improve the efficiency of search and rescue and to ensure the stable operation of the COSPAS-SARSAT, it is necessary to build a mediumearth orbit search and rescue (MEOSAR) ground receiving station in China. This article focuses on the design of MEOSAR ground receiving station of China, which could not only receive the distress alert in real time but also support the processing of new-type distress alert for in-flight distress tracking. Simulation results show that it will fully cover the service area of China Mission Control Center and the search and rescue area of China. This study will play a positive role in the formulation of standards and specifications for MEO satellite technology.