基于交会测量原理，建立了测量航行船舶位置、尺寸的数学模型，推导了测量误差公式。利用Matlab软件进行测量误差分布模拟仿真，对系统测量精度的主要因素进行了分析；结合实验，对测量模型进行了验证。结果表明，利用交会测量原理进行航行船舶位置、尺寸测量的方法是可行的，为进一步的工程应用奠定了基础。

Based on the principle of intersection measurement, a mathematical model is established to gauge the location and the size of the sailing ships, and the formula of measurement error is deduced. The distribution of the measurement error is simulated using Matlab software, and the main factors affecting the system measurement accuracy are analyzed. The measurement model is validated through the tests. The results show that it is feasible to use the intersection measuring principle to measure the location and the size of sailing ships. It also lays the foundation for further project application.