Research and Realization of the HJ-1C Real-time Software Frame Synchronization Algorithm
Hou Yang-shuan Shi Tao Hu Yu-xin
(Key Laboratory of Technology in Geo-spatial Information Processing and Application System, Chinese Academy of Sciences, Beijing 100190, China)
(Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)
Abstract：Conventional software frame synchronization methods are inefficient in processing huge continuous data without synchronization words. To improve the processing speed, a real-time synchronization algorithm is proposed based on reverse searching. Satellite data are grouped and searched in the reverse direction to avoid searching for synchronization words in huge continuous invalid data; thus, the frame synchronization speed is improved enormously. The fastest processing speed is up to 15445.9 Mbps when HJ-1C data are tested. This method is presently applied to the HJ-1C quick-look system in remote sensing satellite ground stations.
侯仰拴, 石 涛, 胡玉新. HJ-1C卫星实时软件帧同步算法研究与实现[J]. 雷达学报, 2014, 3(3): 326-331.
Hou Yang-shuan, Shi Tao, Hu Yu-xin. Research and Realization of the HJ-1C Real-time Software Frame Synchronization Algorithm. JOURNAL OF RADARS, 2014, 3(3): 326-331.
