Research Article
Visual Image Downtransmission of Landing Phase for Deep Space Explorers
@INPROCEEDINGS{10.1007/978-3-030-69069-4_15, author={Cuilian Wang and Yin Li and Ke Li and Dong Zhou}, title={Visual Image Downtransmission of Landing Phase for Deep Space Explorers}, proceedings={Wireless and Satellite Systems. 11th EAI International Conference, WiSATS 2020, Nanjing, China, September 17-18, 2020, Proceedings, Part I}, proceedings_a={WISATS}, year={2021}, month={2}, keywords={Deep space communication Power descent Rate adaptation}, doi={10.1007/978-3-030-69069-4_15} }- Cuilian Wang
Yin Li
Ke Li
Dong Zhou
Year: 2021
Visual Image Downtransmission of Landing Phase for Deep Space Explorers
WISATS
Springer
DOI: 10.1007/978-3-030-69069-4_15
Abstract
Visual image transmission during power descent or landing segment is needed in deep space probes, while the bandwidth of transmission channel is limited and the information transmission rate is low in deep space communication. In view of this contradiction, a rate-adaptive visual image transmission scheme is designed in this paper. Key problems such as frame extraction and playback, frame format identification, joint scheduling are solved. Visual transmission of image under the condition of limited communication rate is realized by the scheme, with the characteristics of real-time performance, rate adaptation, image integrity, etc. At the same time, the concrete implementation and experimental verification of the scheme in engineering are given, which provide reference for the design on spacecraft data management system.
