Accuracy Analysis and Application of UAV RTK Combined with EGM2008 Elevation Anomaly Correction
Unmanned aerial vehicle(UAV)loaded with RTK is more and more widely used in the surveying and mapping industry due to its advantage of avoiding image control operations,but the low mapping accuracy is a key issue that limits its application.By taking advantage of the EGM2008 model in calculating elevation anomalies and participating in image free control graphical calculations,the feasibility of this method was compared and analyzed.Calculate the elevation anomaly correction value within the region using known points,and use it as a fixed difference to correct the elevation error of the EGM2008 model conversion.The example verification shows that the accuracy of the unmanned aerial vehicle RTK combined with EGM2008 elevation anomaly correction can meet the requirements of most surveying engineering.
UAV with RTKEGM2008correction of elevation anomaliesprecision analysis
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