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normal equation system
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  “normal equation system”译为未确定词的双语例句
     As we know, there exist some defects in solving normal equation system. In order to overcome the shortcomings, the singular-value decomposition method and its applications in direct solving theill-conditioning observation equation are studied.
     最后针对法方程解算方法存在的缺点,主要研究了矩阵的奇异值分解技术在直接解算病态观测方程中的应用。
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     Taking advantage of the abnormal band sparse symmetric feature of this normal equation system matrix, the algorithm can reduce n×n stored elements to 5n-10n so that can greatly save storage number and computation time.
     利用法方程系数阵的变带宽稀疏对称性,可使元素存入量由原来的n×n减少到5n~10n,大大节省了存储量和计算时间。
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  相似匹配句对
     equation
     方程(之3)
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     THE NORMAL EQUATION OF THE CONJUGATE ROULETTE
     旋轮共轭啮合的法线条件方程
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     ON THE EQUATION
     关于方程ф(x)=ф(y)
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     The resolution to the normal equation of variational inequality problem
     变分不等式问题的法方程解法
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     SCV was normal.
     SCV均正常;
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  normal equation system
These schemes avoid the normal equation system and thus benefit directly from the structure of the problem.
      
The EM algorithm is derived from the normal equation system, in which both Zj and yj are assumed to be observed.
      
For the time being, the GOCE mission will carry the dimension of the normal equation system to the extremes.
      
As a result, the EM iteration equations have the same form as the normal equation system in linear regression.
      


A practical self-calibrating bundle block adjustment program is introduced in this paper. The features of the program are automatic band-width computation, automatic rearrangement of all the data according to the band-width, direct composition of the reduced normal equation system, compressed storage of the reduced normal equation coefficient matrix and the recursive partitioning algorithm for the solution of the bordered band matrix.

本文介绍了一个实用的自检校光束法区域平差程序。程序的主要特点是:自动计算带宽,自动按带宽重新编排全部数据,逐点法化直接生成改化法方程系,改化法方程系数矩阵按带宽压缩存储,用递归分块消去法解带状加边矩阵。该程序利用国内实际航摄资料和国外HORDORF试验场资料进行了试验,根据对试验结果的分析得出初步结论:所拟定的自检校光束法平差算法是正确的,编制的计算程序是有效的。国外HORDORF试验场资料的计算结果,显示了附加参数补偿系统误差的良好效果;用国内资料计算,自检校光束法平差未能取得预期的效果,主要在于原始数据的误差组成。要想发挥自检校光束法平差的效能,必须采取实际步骤降低偶然误差。

This paper proposes a kind of pratical formulas and program composition of the compress store reduction algorithm to solve symmetric abnormal band-coupled equations. The computation accuracy of the algorithm is higher than generalized square root decomposition method. It approaches the application of compress store reduction algorithm to the adjustment of observation equations for leveling network. Taking advantage of the abnormal band sparse symmetric feature of this normal equation system matrix, the...

This paper proposes a kind of pratical formulas and program composition of the compress store reduction algorithm to solve symmetric abnormal band-coupled equations. The computation accuracy of the algorithm is higher than generalized square root decomposition method. It approaches the application of compress store reduction algorithm to the adjustment of observation equations for leveling network. Taking advantage of the abnormal band sparse symmetric feature of this normal equation system matrix, the algorithm can reduce n×n stored elements to 5n-10n so that can greatly save storage number and computation time.

本文提出了压缩存储约化法求解对称变带宽方程组的一种实用计算公式和程序编制,探讨了压缩存储约化法在水准网间接平差中的应用。利用法方程系数阵的变带宽稀疏对称性,可使元素存入量由原来的n×n减少到5n~10n,大大节省了存储量和计算时间。

This paper makes an analysis and discussion of the behavior, precision and reliability problems etc. of the normal equation systems of horizontal control network set up in linear areas. Some useful conclusions are drawn therefrom.

本文对布设在线状区域水平控制网的法方程组的性态、精度及可靠性问题进行了分析与探讨,得出了有益的结论。

 
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