多站载波相位差分GPS技术在风沙地貌台风响应模式研究中的应用与实现

Application and Implementation of Multi-station Carrier Phase Difference GPS in the Typical Research on the Typhoon Response Models of Aeolian Landform

根据海岸风沙地貌台风响应和单站载波相位差分GPS的特点,提出了应用七参数Δx、Δy、Δz、Ωx、Ωy、Ωz、K的坐标平滑处理技术和求解高程异常值ζ进行曲面拟合的载波相位差分GPS技术,从2014至2017年间对福建平潭岛海岸风沙地貌台风响应的观测点进行实际测量,观测结果与精密水准测量观测出来的结果进行比较,其高程误差范围在0.1~3.3 cm之间。表明多站载波相位差分RTKGPS技术的测量精度完全能满足海岸风沙地貌台风响应观测的精度要求。

According to the coastal sand geomorphology typhoon response and the characteristics of single station carrier phase difference GPS, the paper puts forward the application of seven parameters（Δx、 Δy、 Δz、Ωx、 Ωy、 Ωz、 K） of smoothing processing technology and solves the abnormal height coordinate value（ζ） curved surface fitting of multi-station carrier phase differential GPS technology. During 2014 and 2017, the paper does the actual measurement in Fujian Pingtan island coastal sand geomorphology typhoon response observation point.Comparing the observations results with the precise leveling observation results, the results show that elevation error range between 0.1 to 3.3 cm, which indicates that measurement precision of more standing carrier phase difference GPS can satisfy the requirement of the coastal sand geomorphology typhoon response observation precision.