Analysis of Tracking Telemetry and Command System for China’s Lunar Communication Navigation and Remote Sensing Integrated Constellation

Abstract

In response to the TT&C （Tracking，Telemetry，and Command） and communication needs of China's future lunar communication，navigation，and remote sensing integrated constellation serving users in Earth-Moon space，accuracy and applicability of various orbit determination technologies were comprehensively analyzed，including ground-based orbit determination，GNSS signal leakage orbit determination，BeiDou inter-satellite link orbit determination，LiAISON autonomous orbit determination，ground-assisted GNSS orbit determination，and lunar laser ranging orbit determination. The feasibility of communication methods for supporting the constellation，such as direct Earth-based Ka-band/laser communication and Ka-band/laser relayed communication was analyzed. Based on this，technical solutions are proposed to support the TT&C and communication of China's integrated constellation，providing technical support for the design and implementation of its TT&C system.

Keywords

ground-based measurement / GNSS signal leakage / lunar laser ranging / Ka-band communication / Earth-Moon laser communication