摘要
GPS高程测量是建立高精度、高分辨率的城市似大地水准面精化模型的关键技术,分别介绍了最小二乘多项式拟合、半参数估计、BP神经网络等算法,并基于华东地区某城市GPS控制网的测量数据,验证了几种算法的有效性与可靠性,结果证明半参数方法求解结果更好。
GPS height measurement is to establish a high accuracy, high resolution in the city group of quasi geoid model and key technology, the author introduces the least square polynomial fitting, parameter estimation, the BP neural network algorithm, and based on a city group in East China GPS control net survey data, verification of several algorithms validity and reliability, results show that par- ametric method for better results.
出处
《江西科学》
2013年第4期484-487,520,共5页
Jiangxi Science
基金
江西省数字国土重点实验室开放基金项目(DLLJ201210
DLLJ201304)
