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中文摘要：
霍夫变换是一种检测直线图像的方法，具有抗粗差和抗干扰能力强的优点。将霍夫变换引入海岸工程领域进行潮位线性相关的分析计算，通过分析不同△ρ与ρ、θ（霍夫参数）的变化关系及其稳定性来合理获取拟合直线，避免了因采用最小二乘法获得不甚合理的线性相关结果。初步应用研究表明，霍夫变换可以用来直线拟合两个相关变量均存在误差且几率相仿的情况，结果与实际情况符合良好。
英文摘要：
Hough Transform, used to inspect the linear images, has the strong point of resisting great errors and interference. This paper brings Hough Transform into the coastal engineering area to calculate the linear tidal elevation relationship among different tidal stations. The coefficient of the fit line is obtained through analyzing the relation that Hough Transform coefficient （ρ and θ） changes with different △ρ and the stability of Hough Transform coefficient, and the illogical result is avoided when using least square. The elementary applied research makes it clear that Hough Transform can be used to the fit line whose two variables both have errors and the errors are almost similar. The result well accords with the actual situation.
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