Development of the Lunar-Earth and Deep Space TT&C System with Several Key Techniques
This paper analyzes the present research status of the lunar-earth and deep space telemetry, track and command (TT&C) system, four major difficulties and challenges to establish the TT&C system are studied. Then urgent needs for antenna arraying t
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Development of the Lunar-Earth and Deep Space TT&C System with Several Key Techniques Haifeng Yang, Lin Chai, Ouxin Lu, Jianping Hu, Maoge Xu and Hui Yan
18.1
Introduction
Deep space telemetry, track and command (TT&C) system, which refer to the detection of the moon and further celestial bodies or space, is an important symbol of both national strength and the development of science and technology. Developing deep space TT&C can effectively drive the progress of space science, technology and application. Meanwhile, it can promote a variety of significant scientific researches, such as the influence of celestial activity, the origin of the solar system, and the exploration of extra-terrestrial life [1, 2]. Under the circumstances of lunar-earth and even further deep space TT&C system, it is difficult to improve the performance of traditional radio frequency TT&C to satisfy the current need. At the same time, a series of new assignment demands new technology and higher-performance. On the basis of analysis of the current research status of the lunar-earth, deep space TT&C system at home and abroad, and this paper summarizes the major difficulties and challenges to establish the deep space TT&C system of our country. The recommendations of future developments of the lunar-earth, deep space TT&C system have been proposed, which can provide references for the development of the lunar-earth, deep space TT&C system.
H. Yang (&) L. Chai O. Lu J. Hu M. Xu H. Yan The 10th Research Institute of China Electronics Technology Group Corporation (CETC), Chengdu 610036, China e-mail: [email protected] © Tsinghua University Press, Beijing and Springer Nature Singapore Pte Ltd. 2018 R. Shen and G. Dong (eds.), Proceedings of the 28th Conference of Spacecraft TT&C Technology in China, Lecture Notes in Electrical Engineering 445, DOI 10.1007/978-981-10-4837-1_18
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H. Yang et al.
Lunar-Earth and Deep Space TT&C Task Requirements
18.2.1 Overall Demand for Lunar-Earth and Even Further Deep Space TT&C System In November 2000, Chinese government published “China’s space” white paper, formally announced to launch the advanced study of moon-oriented deep space exploration. In recent, the State Council of the People’s Republic of China published “The Outline of National Medium and Long Term Science and Technology Development Program”, in which deep space exploration is proposed as an independent division. This explicitly implies the urgent demand of deep space exploration. At the same time of finalizing the plan of china lunar exploration project, according to the general objective of deep space exploration, 9 exploration tasks will be scheduled during the next 20 years. The aim of these tasks is to improve the relative technology and expand the detection range. The whole assignment is divided into three stages, and the time node of each stage is 2020, 2025 and 2030. The TT&C tasks of each stage are as follows [3, 4]: In the first stage: to expand the TT&C range from 1.5 million km to 400 million km, and to improve
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