Research on application of variable coding modulation system based on Digital Video Broadcasting ‐ Satellite ‐ 2nd Generation in data transmission of near‐earth remote sensing satellite

• DOI: 10.1002/sat.1350
• Publication Date: 2020-05-06T03:35:34Z
• Authors: Shasha Zhang; Haiyi Cao; Xinwei Zhang; Xinyu Yao; Chenguang Zhao
• Keywords: Transmission system; Communications satellite

Summary In order to make full use of the link resources for data transmission from near‐earth remote sensing satellites, variable coding modulation (VCM) system is used fully utilize margin improve satellite performance. By analyzing dynamic under VCM system, contribution optimization studied perspective engineering application, which can provide reference design satellites. Applying flow design, currently adopted X band, compared with traditional constant (CCM) average performance be increased by 42.1% in single‐station mode and 53.3% dual‐station relay through exampled analysis.