Exploration and application of remedy measures for differential signal interrupt in river survey
In order to solve the negative effects of GNSS differential signal interruption in river survey,the precision and rate of change of GNSS single point positioning are analyzed,the data collected during difference signal interruption is corrected by using the single point positioning post-processing technology,and the error is analyzed statistically.The results show that the error of single-point positioning data is acceptable after correction by post-processing technology,and the data can meet the quality requirements,thus avoiding unnecessary rework caused by differential signal interruption affecting result quality.GNSS single point positioning post-processing technology can play a very good complementary role in river survey,which can also serve as a reference in river survey and offshore underwater topographic survey,especially in small scale underwater topographic survey.
river surveyGNSSsingle point positioningdifferential signalsignal interruptremedy measure
万方数据
维普
