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- inverse problem theory 反问题理论
- In Charpter 2, the imaging theory of magnetic resonance imaging (MRI) system and current density imaging (CDI) technique were introduced, and then the development history of the forward problem, inverse problem and the difficulty of MREIT were stated. 2,第二章详细介绍了基于磁共振成像系统的生物电阻抗成像技术的背景知识。 首先对磁共振成像的成像原理做了简单的介绍,然后介绍了利用磁共振成像系统检测物体内电流密度分布的电流密度成像技术的成像过程与成像原理,最后论述了基于磁共振成像系统的生物电阻抗成像技术的发展历程、正问题、逆问题与目前面临的难点问题。
- This paper is focused on the inverse problem of doubly center matrices. 摘要本文研究双中心矩阵反问题。
- In this paper an inverse problem of determing an initial heat source for parabolic equations is discussed. The uniqueness and conditional stability are derived by the exact controllability theory. 关键词：条件稳定性,热传导方程,双正交函数,精确控制方法,边界观察数据|全部关键词
- The inverse problem of finding the displacement field from a strain field is not so simple. 反过来，如果从变应场来寻找位移场，那么问题就没有这么简单。
- The inverse acoustic scattering problem is a typical Math-matical Physics inverse problem. 声波反散射问题是一个典型的数学物理反问题。
- The inverse problem of space manipulator described by full Cartesian coordinates is studied in the present paper. 讨论了用完全笛卡尔坐标描述的空间机械手逆动力学问题。
- Direct and Inverse Problems in Engineering applications. 工程应用中的正逆命题。
- The least-square solutions to the inverse problem are established and their general form is given. 建立了双中心矩阵反问题的最小二乘解，得到了解的具体表达式。
- Levenberg-Marquardt algorithm can also be used to solve the nonlinear inverse problem of the parameter estimation. 遗传算法是一种相对较新的用于最优化估计的方法,也可以用于求解反问题。
- The error of FIF is studied in this paper, and an efficient method to solve the inverse problem of FIF is obtained. 摘要研究分形插值的误差估计，并由此获得解反问题的一条有效途径。
- An inverse problem of a free boundary problem which arised from the flow of non-Newtonian fluids is studied. 摘要讨论了由非牛顿流体流动引起的一类自由边值问题的一个反问题。
- This inverse problem can be solved in two steps, and consequently divided in two subproblems to research. 该反问题的求解可分成两步进行，归结为两个相应的子问题进行研究。
- The reconstruction algorithms include back projection algorithm and filter back projection algorithm for inverse problem. 逆问题部分实现反投影算法和滤波反投影算法。
- Normally, image reconstruction from incomplete projections is an ill-conditioned inverse problem which can not be solved by traditional FBP or ART algorithm. 从投影重建切片图像,可以看作是解一个线性方程组的问题,由于投影数目少,该方程组无唯一解。
- The numerical method for the inverse problem of second-dimensional advection-dispersion-reaction equations is discussed in the article. 摘要讨论了一类二维对流反应扩散方程反问题的数值解法。
- An inverse problem method is employed to determine the average magnitude of acid pollutants in groundwater in Fengshui, Zibo, Shandong. 摘要应用反问题方法探讨山东淄博市张店区沣水南部区域地下水中硫酸盐的年入渗强度的数值反演问题。
- The least-squares solutions of the inverse problem of anti-centrosymmetric matrices is discussed, and the expression of the solution is obtained. 摘要讨论反中心对称矩阵反问题的最小二乘解，得到瞭解的具体表达式。
- It transforms the inverse problem of parameter identification into solution of optimization problem using evolutionary algorithm. 该方法把参数识别反问题转化为优化问题用演化方法求解。
- Including material inhomogeneity and distributive parameters, a least-square optimal model is developed for the inverse problem. 由最小二乘原理建立反演模型，应用共轭梯度法进行求解。
