Laser & Optoelectronics Progress, Volume. 60, Issue 7, 0701003(2023)
Research on GNSS-R Tide Height Inversion Method Based on BDS-3/GPS Multi-Frequency Data
Figures & Tables(10)
Fig. 3. Relationship between GPS inversion accuracy in different frequency bands and PROB. (a) GPS S1C; (b) GPS S2W; (c) GPS S1X; (d) GPS S5X
Table 1. MAYG station GPS and BDS-3 satellite system data type
View tableTable 1. MAYG station GPS and BDS-3 satellite system data type
Satellite system Frequency band Frequency /MHz Channel /code Type of SNR L1 1575.420 C/A S1C GPS L2 1227.600 Z tracking
and similar
（AS on）
S2W L2C（M+L） S2X BDS-3 L3 1176.450 I+Q S5X B1 1561.098 I S1I B2 1207.140 I S7I B2a 1176.450 D+P S5X B1C 1575.420 D+P S1X B3 1268.520 I S6I
Table 2. Inversion accuracy of GPS S2X, S5X, and BDS S5X
View tableTable 2. Inversion accuracy of GPS S2X, S5X, and BDS S5X
Frequency band DOY 333 days 334 days 335 days 336 days 337 days 5 days GPS S2X 0.5732 0.5436 0.5829 0.5008 0.4755 0.5373 GPS S5X 0.5835 0.5760 0.5750 0.4741 0.4459 0.5348 BDS S5X 0.5699 0.5759 0.5447 0.7937 0.7401 0.6512
Table 3. Statistics of inversion results of GPS S1C and S2W and BDS S1X, S2I, S6I, and S7I frequency band using scheme 1
View tableTable 3. Statistics of inversion results of GPS S1C and S2W and BDS S1X, S2I, S6I, and S7I frequency band using scheme 1
Frequency band Parameter DOY 5 days 333 334 335 336 337 GPS S1C Number of tide level inversion results 13 10 10 12 13 58 RMSE /m 0.9330 1.0078 0.7564 1.0752 0.5612 0.8824 GPS S2W Number of tide level inversion results 23 19 21 24 23 110 RMSE /m 0.8161 1.0837 0.6990 0.8347 0.6480 0.8217 BDS S1X Number of tide level inversion results 20 19 18 17 20 94 RMSE /m 1.7340 1.5914 1.5013 1.6052 1.9647 1.6943 BDS S2I Number of tide level inversion results 33 27 30 29 31 150 RMSE /m 0.7671 1.0451 0.9666 1.0393 1.1435 0.9960 BDS S6I Number of tide level inversion results 29 17 27 21 24 118 RMSE /m 1.2424 1.4895 1.4975 1.4742 1.3968 1.4127 BDS S7I Number of tide level inversion results 28 17 20 17 23 105 RMSE /m 1.5133 1.7255 1.4970 1.3976 1.4962 1.5252
Table 4. Statistical of 5-day inversion results using 9 frequency bands of BDS and GPS in scheme 2
View tableTable 4. Statistical of 5-day inversion results using 9 frequency bands of BDS and GPS in scheme 2
Frequency band Number of tide level inversion results RMSE /m GPS S1C 19 1.0108 GPS S2W 60 0.7288 GPS S2X 98 0.5410 GPS S5X 98 0.5143 GPS 275 0.6205 BDS S1X 71 1.6384 BDS S2I 52 0.9340 BDS S5X 107 0.5618 BDS S6I 42 1.3413 BDS S7I 34 1.2940 BDS 306 1.1465
Table 5. Statistics of inversion results of GPS S1C and S2W and BDS S1X, S2I, S6I, and S7I frequency band using scheme 3
View tableTable 5. Statistics of inversion results of GPS S1C and S2W and BDS S1X, S2I, S6I, and S7I frequency band using scheme 3
Frequency band Parameter DOY 5 days 333 334 335 336 337 GPS S1C Number of tide level inversion results 30 32 31 31 31 155 RMSE /m 0.6267 0.6599 0.7441 0.5843 0.6135 0.6482 GPS S2W Number of tide level inversion results 29 32 30 31 30 152 RMSE /m 0.6842 0.7076 0.6433 0.5235 0.5921 0.6336 BDS S1X Number of tide level inversion results 28 30 30 29 29 146 RMSE /m 0.7394 0.6926 0.5184 0.6711 0.6362 0.6546 BDS S2I Number of tide level inversion results 49 48 51 52 54 254 RMSE /m 0.7526 0.5366 0.6235 0.7656 0.5627 0.6550 BDS S6I Number of tide level inversion results 49 49 52 49 54 253 RMSE /m 0.7482 0.5995 0.7720 0.7442 0.8056 0.7391 BDS S7I Number of tide level inversion results 49 48 51 49 53 250 RMSE /m 0.7922 0.5765 0.5556 0.7489 0.6983 0.6805
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Mei Ming, Dongjie Yue, Shaolin Zhu. Research on GNSS-R Tide Height Inversion Method Based on BDS-3/GPS Multi-Frequency Data[J]. Laser & Optoelectronics Progress, 2023, 60(7): 0701003
Paper Information
Category: Atmospheric Optics and Oceanic Optics
Received: Nov. 22, 2021
Accepted: Feb. 14, 2022
Published Online: May. 24, 2023
The Author Email: Mei Ming (mmei2019@163.com)
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