We present a method of circular arc fragmented curve-fitting based on leastmean-squareerror rule in this paper.
提出了一种基于最小均方误差准则的圆弧分段曲线拟合方法。
2
The leastsquare solution and minimum mean square error(MMSE) solution for roundness error and spindle error was derived by measurement matrix in frequency-domain.
这种方法利用频域测量矩阵直接给出了圆度形状误差和回转误差的最小二乘解或最小均方误差解。
3
The total income of national economy and the amount of population are predicted with second-degree moving model and with the principle of leastmeansquare fit error determining designated value n.