我们利用最小二乘法、体积模型、等级换算模型对数据进行处理，得出方法二比方法一的准确性略高。
The authors get the result that way 2 is better than way 1 by processing data, making use of least squares method, volume model and classification exchange model.
通过大量模拟器驾驶实验，建立驾驶操作和驾驶员生理指标之间的关系模型，并运用最小二乘法对数学模型进行了参数识别。
Through a large number of experiments on vehicle driving simulator, parameters of driving operation and physiological indexes were collected at the same time.
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