Solar Heat Flux Suppression on Optical Antenna of Geosynchronous Earth Orbit Satellite-Borne Lasercom Sensor
Author:
Liu Ming12, Zhao Hongwei1, Zhu Chengwei2, Wen Guanyu2
Affiliation:
1. School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China 2. Changchun Observatory, National Astronomical Observatories, CAS, Changchun 130117, China
Abstract
The objective of this article is to examine potential techniques for suppressing solar heat flow on the optical antenna of a laser communication sensor. Firstly, the characteristics of the geosynchronous Earth orbit’s (GEO) space radiation environment are analysed, and a combined passive and active thermal control solution is proposed. Secondly, the temperature distribution of the lasercom sensor under extreme operating conditions is simulated utilising IDEAS-TMG (6.8 NX Series) software, which employs Monte Carlo and radiative heat transfer numerical calculation methods. Finally, a strategy for avoiding direct sunlight around midnight is proposed. The simulation results demonstrated that the thermal control solution and solar avoidance strategy proposed in this paper achieved long-term fine-stable control of the temperature field of the optical antenna, which met the thermal permissible communication hours per daily orbit cycle in excess of 14 h per day.
Funder
National Natural Science Foundation of China Jilin Province Science and Technology Department Large-Scale Scientific Research Instrument Function Development Project
Reference32 articles.
1. Hemmati, H. (2021). Near-Earth Laser Communications, CRC Press. [2nd ed.]. 2. Majumar, A.K. (2022). Laser Communication with Costellation Satellites, UAVs, HAPs and Ballons, Springer Nature Switzerland AG. [1st ed.]. 3. Troendle, D.C., Rochow, C., Martin-Pimentel, P., Zech, H., Heine, F.F., Kaempfner, H., Motzigemba, M., Sterr, U., Meyer, R., and Lutzer, M. (2014, January 4–7). Optical LEO-GEO Data Relays: From Demonstrator to Commercial Application. Proceedings of the 32nd AIAA International Communications Satellite Systems Conference, San Diego, CA, USA. 4. Heine, F., Kämpfner, H., Czichy, R., Meyer, R., and Lutzer, M. (November, January 31). Optical Inter-satellite Communication Operational. Proceedings of the 2010-Milcom 2010 Military Communications Conference, San Jose, CA, USA. 5. Chen, W., Sun, J., Hou, X., Zhu, R., and Hou, P. (2017, January 14–16). 5.12 Gbps Optical Communication Link Between LEO Satellite and Ground Station. Proceedings of the 2017 IEEE International Conference on Space Optical Systems and Applications, Naha, Japan.
|
|