Predicting Roll Angular Motion

船舶的横摇角运动，或称横摇角运动，表示其围绕纵轴的摆动，主要是由波浪运动引起的。预测随机存取存储器的能力具有重要的实用价值。例如，在与国防有关的工作中，它在确定武器系统的精确度方面发挥作用。我们建议了一种预测随机存取存储器的技术。我们的方法借鉴了参数统计和非参数统计，因为正弦模型只在很短的时间间隔内适合于数据。我们展示了如何评估和纠正错误。特别是，我们提出了将概率与预测的准确性联系起来的方法。

The roll angular motion, or RAM, of a ship denotes its oscillation about its longitudinal axis, primarily caused by wave motion. The ability to predict RAM is of significant practical utility. For example, in defence-related work it plays a role in determining accuracy of weapons systems. We suggest a technique for predicting RAM. Our method borrows from both parametric and nonparametric statistics, in that a sinusoidal model is fitted to data but only over a short time interval. We show how to both assess and correct error. In particular, we propose methods for attaching probabilities to the accuracy of predictions.