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| Comparative analysis of Beidou and Lband sounding system detection |
| Zheng Yan, Liu Liqun, Dong Fangyou, Qiu Nian, He Minfa |
| Anqing Meteorological Bureau, Anqing 246000 |
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Abstract Using the data from the Anqing Station during the round-trip drift sounding test in the middle and lower reaches of the Yangtze River from March to September 2021,a comparative analysis was conducted between the detection data of the Beidou satellite navigation system and the L-band sounding system.The correlation and measurement difference between the two systems were statistically analyzed to further understand the accuracy and credibility of the new intelligent Beidou satellite navigation system product.The results showed that the temperature,altitude,and wind measurement results of the two were consistent,with correlation coefficients of 0.987 and 0.992 for temperature and altitude,and 0.879 and 0.720 for wind speed and direction,respectively.The differences in temperature,altitude,wind direction,and wind speed were small,indicating good detection performance of the Beidou satellite navigation system.
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Received: 27 September 2023
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2025, Vol. 42 
