Analysis of the Spatial Distribution and Common Mode Error Correlation in a Small-Scale GNSS Network
Abstract
:1. Introduction
2. Materials and Methods
2.1. GNSS Data Source
2.2. Common Mode Error Analysis Methods
2.2.1. Regional Stacking Filter Method
2.2.2. Correlation Coefficient Weighted Stacking Filter
2.2.3. Correlation Coefficient Weighted Independent Component Analysis
3. Results
3.1. Analysis of Common Mode Error Correlation among Stations
3.2. Improved Weighted Independent Component Analysis Method
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Station Name | Latitude | Longitude | Height |
---|---|---|---|
ALMO | 38.706 | −4.18 | 743.351 |
CAAL | 37.221 | −2.548 | 2210.684 |
CATU | 38.73 | −5.539 | 538.65 |
COBA | 37.916 | −4.721 | 202.074 |
CRVC | 38.115 | −1.869 | 738.087 |
GRA1 | 37.19 | −3.596 | 823.247 |
MALA | 36.726 | −4.394 | 119.83 |
VICA | 38.118 | −3.083 | 852.446 |
Station Name | Latitude | Longitude | Height |
---|---|---|---|
MHDL | 37.842 | −122.494 | 65.889 |
P193 | 38.123 | −122.908 | 66.598 |
P197 | 38.429 | −122.767 | 0.033 |
P206 | 38.778 | −122.576 | 283.607 |
P255 | 37.582 | −121.325 | 73.512 |
P266 | 38.184 | −121.844 | 22.449 |
P268 | 38.474 | −121.464 | −23.906 |
SVIN | 38.033 | −122.526 | −27.561 |
Experimental Area | Experimental Area 1 | Experimental Area 2 | ||||
---|---|---|---|---|---|---|
Direction | E | N | U | E | N | U |
Mean correlation coefficient before filtering | 0.49 | 0.37 | 0.48 | 0.71 | 0.56 | 0.54 |
Mean correlation coefficient after filtering using the regional stacking filter. | 0.33 | 0.37 | 0.28 | 0.35 | 0.37 | 0.28 |
Change rate of the mean correlation coefficient after filtering using the regional stacking filter/%. | 32.37 | 0.13 | 39.98 | 50.35 | 33.40 | 47.65 |
Mean correlation coefficient after filtering using the correlation coefficient weighted stacking method. | 0.30 | 0.36 | 0.28 | 0.32 | 0.37 | 0.25 |
Change rate of the mean correlation coefficient using the correlation coefficient weighted stacking method/%. | 38.70 | 2.63 | 41.08 | 54.31 | 34.42 | 53.72 |
Experimental Area | Experimental Area 1 | Experimental Area 2 | ||||
---|---|---|---|---|---|---|
Direction | E | N | U | E | N | U |
RMS before filtering (mm) | 1.92 | 2.52 | 5.85 | 2.99 | 2.43 | 6.08 |
RMS using Regional Stacking Filter (mm) | 1.43 | 2.19 | 4.24 | 1.70 | 1.54 | 3.90 |
RMS using Correlation Coefficient Weighted Stacking Filter (mm) | 1.40 | 2.18 | 4.20 | 1.67 | 1.53 | 3.73 |
Method | Station | Filtering Rate/% | |||||||
---|---|---|---|---|---|---|---|---|---|
ALMO | CAAL | CATU | COBA | CRVC | GRA1 | MALA | VICA | ||
RMS before filtering (mm) | 1.7949 | 1.9421 | 1.5079 | 1.5185 | 1.9404 | 2.5487 | 2.6103 | 1.515 | |
RMS using ICA (mm) | 1.034 | 1.74 | 1.4853 | 1.4128 | 1.6331 | 2.0691 | 2.5919 | 1.1079 | 15.43 |
RMS using WICA (mm) | 0.9254 | 1.6286 | 0.8645 | 1.1902 | 1.7138 | 1.6344 | 2.4235 | 0.90627 | 27.96 |
Method | Station | Filtering Rate/% | |||||||
---|---|---|---|---|---|---|---|---|---|
ALMO | CAAL | CATU | COBA | CRVC | GRA1 | MALA | VICA | ||
RMS before filtering (mm) | 3.4761 | 3.4241 | 1.6881 | 2.0365 | 2.3258 | 2.2333 | 3.1696 | 1.8095 | |
RMS using ICA (mm) | 2.4014 | 2.9102 | 1.6806 | 2.0083 | 2.2036 | 1.5011 | 2.9996 | 1.7892 | 11.53 |
RMS using WICA (mm) | 2.7561 | 2.736 | 1.6868 | 1.8261 | 2.209 | 2.1448 | 1.2765 | 1.7747 | 15.23 |
Method | Station | Filtering Rate/% | |||||||
---|---|---|---|---|---|---|---|---|---|
ALMO | CAAL | CATU | COBA | CRVC | GRA1 | MALA | VICA | ||
RMS before filtering (mm) | 5.2996 | 6.1776 | 5.1835 | 7.0438 | 5.1321 | 5.4421 | 6.7676 | 5.7815 | |
RMS using ICA (mm) | 4.1702 | 4.9092 | 5.066 | 5.0487 | 4.0337 | 4.9144 | 4.1346 | 5.0586 | 19.36 |
RMS using WICA (mm) | 3.8522 | 3.9428 | 4.4056 | 4.0795 | 4.1465 | 3.8767 | 4.1428 | 4.6632 | 28.33 |
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Li, A.; Wang, Y.; Guo, M. Analysis of the Spatial Distribution and Common Mode Error Correlation in a Small-Scale GNSS Network. Sensors 2024, 24, 5731. https://doi.org/10.3390/s24175731
Li A, Wang Y, Guo M. Analysis of the Spatial Distribution and Common Mode Error Correlation in a Small-Scale GNSS Network. Sensors. 2024; 24(17):5731. https://doi.org/10.3390/s24175731
Chicago/Turabian StyleLi, Aiguo, Yifan Wang, and Min Guo. 2024. "Analysis of the Spatial Distribution and Common Mode Error Correlation in a Small-Scale GNSS Network" Sensors 24, no. 17: 5731. https://doi.org/10.3390/s24175731