Volume 43 Issue 4
Jul.  2023
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Article Navigation >  Chinese Journal of Space Science  > 2023  >  43(4): 618-626 Open Access
ZHAO Gangquan, WANG Caiyun, LIU Dapeng, LI Lingling. Development of a Low-power Ionosonde in Yinchuan and Analysis of Preliminary Test Results (in Chinese). Chinese Journal of Space Science, 2023, 43(4): 618-626 doi: 10.11728/cjss2023.04.220127011
Citation: ZHAO Gangquan, WANG Caiyun, LIU Dapeng, LI Lingling. Development of a Low-power Ionosonde in Yinchuan and Analysis of Preliminary Test Results (in Chinese). Chinese Journal of Space Science, 2023, 43(4): 618-626 doi: 10.11728/cjss2023.04.220127011
shu

Development of a Low-power Ionosonde in Yinchuan and Analysis of Preliminary Test Results

doi: 10.11728/cjss2023.04.220127011 cstr: 32142.14.cjss2023.04.220127011
  • 1.

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

  • 2.

    University of Chinese Academy of Sciences, Beijing 100049

  • 3.

    Key Laboratory of Microwave Sensing, Chinese Academy of Sciences, Beijing 100190

  • 4.

    National Institute of Natural Hazards, Beijing 100085

  • 5.

    Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094

  • Received Date: 2022-01-26
  • Accepted Date: 2022-04-11
  • Rev Recd Date: 2022-04-08
    • Available Online: 2023-07-22
    Abstract
  • A low-power ionosonde is developed, with a pair of new kind Delta antenna and barker-liked coding technique. A varied sampling duration is utilized in the receiving windows to improve the test efficiency. The ionosonde is built in Yinchuan Earthquake Monitoring Test Site, Ningxia Hui Autonomous Region of China. The continuous observation test was carried out for a whole day in August 2021. The preliminary test result shows that the diurnal variation of the critical frequency of the F2 layer has a positive correlation as of the solar elevation angle in Yinchuan area. An image processing technique is employed for the automatic separation of the O/X waves in the original ionograms. The difference between the critical frequencies of the two polarized waves is about 0.7 MHz, which is basically consistent with the local 0.5 times magnetic spin frequency of Yinchuan, which is 0.7 MHz also. The operation of the ionosonde is stable, and the obtained data are reliable, which provides a valuable algorithm reference and data accumulation significance for the subsequent in-depth processing of satellite-ground joint multi-dimensional data.

     

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