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1·Extend the expressions of the minimum mean squared error bounds of the references, and give the relations of the minimum mean squared error bounds of pose Angle and noise standard deviation.

对文献中已给的目标方位角的最小均方误差表达式进行了推导，并且给出了方位角的最小均方误差和噪声偏差之间的关系。

2·The standard error of prediction (% SEP), the mean prediction error (MPE) and the mean relative error (MRE) were utilized to evaluate the prediction ability of the BP-ANN.

用标准预测误差(% SEP)，平均预测误差(MPE)和平均相对误差(MRE)来评价其预测能力。

3·The investigation object of this paper is the standard canonical form. In order to the mean square error, I analyze the existence and choiceness of ridge regression K in some spectrum.

本文以多元线性回归模型的典则形式为研究对象，从减小均方误差的角度出发，在一定的范围内分析了岭参数K 的存在性和岭估计的优良性。