The purpose of this paper is to present a simple least squares technique for identifying a ship’s linear sway-yaw manoeuvring coefficients and drag-area parameters in current and wind, using measured data. These coefficients are required inputs to a standard three-degree-of-freedom manoeuvring model. The identification method employs the BFGS algorithm which avoids direct computation of the Hessian of the residual function. The results of test simulation problems are discussed and an identification example with measured data is presented. The applicability and limitations of the algorithm are discussed.

中文翻译：

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船舶线性偏航操纵系数和阻力区参数的最小二乘辨识

本文的目的是提出一种简单的最小二乘技术，利用实测数据来识别船舶在海流和风中的线性横摆操纵系数和阻力区域参数。这些系数是标准三自由度机动模型的必需输入。识别方法采用BFGS算法，避免了直接计算残差函数的Hessian。讨论了测试仿真问题的结果，并给出了一个带有测量数据的识别示例。讨论了该算法的适用性和局限性。