Volume 42 Issue 6
Dec.  2022
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Article Navigation >  Chinese Journal of Space Science  > 2022  >  42(6): 1222-1229
ZHANG Xinyu, YANG Jiasen, ZHANG Xuefeng, XU Cong, CHEN Zhimin, ZHI Jia, CHEN Tuo. High Performance Real-time Odd-even Channels Combination Algorithm for Transmission Baseband Data Using Dual-polarized Technology (in Chinese). Chinese Journal of Space Science, 2022, 42(6): 1222-1229 doi: 10.11728/cjss2022.06.211125125
Citation: ZHANG Xinyu, YANG Jiasen, ZHANG Xuefeng, XU Cong, CHEN Zhimin, ZHI Jia, CHEN Tuo. High Performance Real-time Odd-even Channels Combination Algorithm for Transmission Baseband Data Using Dual-polarized Technology (in Chinese). Chinese Journal of Space Science, 2022, 42(6): 1222-1229 doi: 10.11728/cjss2022.06.211125125
shu

High Performance Real-time Odd-even Channels Combination Algorithm for Transmission Baseband Data Using Dual-polarized Technology

doi: 10.11728/cjss2022.06.211125125 cstr: 32142.14.cjss2022.06.211125125
  • 1.

    National Space Science Center, Chinese Academy of Sciences, Beijing 100190

  • 2.

    University of Chinese Academy of Sciences, Beijing 100049

  • Received Date: 2021-11-25
  • Accepted Date: 2022-01-05
  • Rev Recd Date: 2022-04-15
    • Available Online: 2022-11-21
    Abstract
  • Odd-even frames real-time combination for transmission baseband data which used dual-polarized technology is the prerequisite and basis for timely monitoring of satellite equipment status when the satellite is in transit arc and early access to scientific exploration data by satellite ground application system. A high performance real-time odd-even channels combination algorithm for transmission baseband data which uses dual-polarized technology is proposed to meet the need of scientific satellite real-time high-speed data processing. This method makes full use of the naturally ordered frame counting feature of each virtual channel and applies the circular memory management design of circular queue. Therefore, this method effectively avoids the time-consuming sort and frequent memory moving operations compared to traditional algorithms. The space science satellites’ engineering practice shows that the speed of combination meets ASO-S’s 1 Gbit s–1 and CASEarth’s 1.6 Gbit s–1 real-time processing requirements.

     

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