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- Using distributed source model, this imaging problem can be formulated as an ill-conditioned and highly underdetermined linear inverse problem. 采用非参数的分布源模型,磁源成象问题即为求解一病态的欠定的线性方程组。
- linear inverse problems 线性反演问题
- The FBC is a non linear system which is chaotic. 流化床燃烧系统是一个具有混沌特性的非线性动力系统；
- Direct and Inverse Problems in Engineering applications. 工程应用中的正逆命题。
- The solvability conditions of the LQ inverse problem for the multivariable linear time invariant system is studied iwth the polynomial matrix method. 利用多项矩阵方法研究了多变量线性定常系统LQ逆问题的可解性条件，得到了一般情形下的LQ逆问题解的充要条件及其代数描述。
- The solvability conditions for the LQ inverse problem of the multi-variable linear time-invariant system are studied with the polynomial matrix approach. 研究了多变量线性定常系统LQ逆问题的可解性条件，得到了一般情形下的LQ逆问题解的充要条件，据此分类、分层次地给出了LQ逆问题解集的代数刻划。
- NON LINEAR VOLTAGE DEPENDENT DISC HARGE RESISTORS By Power Development Co. Ltd[S]. 中国科学院等离子体物理研究所.;二滩水力发电厂励磁系统咨询报告[R]
- The present study is useful for non linear analysis,crack analysis,and overloading analysis of arch dams. 根据该模型编制了相应的程序，并对小湾拱坝进行了非线性分析、超载分析及开裂范围和开裂尺寸的研究。
- A non linear photochromic mask layer can be utilized for super resolution optical data storage. 利用光致变色介质的非线性效应特性制成掩膜,可以实现超分辨率光存储。
- 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。
- This paper analysis the limitations of traditional optimization metheods for a kind of non linear programming(NLP). 对间歇化工过程用水网络优化提出了基于非线性规划的优化设计方法。
- The main idea is to make full use of the decorrelation of two complex-valued vectors in generating independent components by non linear decorrelation. 结合非正则复向量的协方差矩阵和伪协方差矩阵构造出了新的代价函数，进而提出新算法，通过复非线性不相关，从混合信号中提取出复值独立分量。
- The results show that GA-FEM is an effective way to solve inverse problems of partial differential equations. 研究还表明遗传有限单元法是偏微分方程反演问题求解的一种有效方法。
- By using the wavelet transform and the non linear optimization,we calculated parameters and determined the saltation edges of the differential ECG. 微分心电信号的突变特性反映了心肌除极波前在传播过程中的临界点现象,有可能解释心电图高频成分的成因。
- Abstract The power automatic control system on nuclear heating reactor (NHR) is a multi input &multi output non linear system. 摘要 核供热堆功率自动控制系统是一个多输入多输出的非线性系统。
- Sun N. Z. Inverse Problems in Groundwater Modeling. Kluwer Academic Publishers, Netherlands, 1994. 黄光远;刘小军.;数学物理反问题
- The stability of dissolving cavity for the low depth thin layer rock salt has been researched by the ADINA non linear finite element method. 为了延长盐矿井的寿命,避免开采带来的地面沉陷,并合理利用形成的溶腔,必须探讨岩盐水溶开采过程中影响溶腔稳定性的因素,以便即时采取有效的防治措施。
- Thus an alternative for the global optimization of inverse problems in electromagnetics is introduced. 因此，本文为电磁场逆问题的求解计算提供他一种可供选择的全局优化算法。
- In this paper, the large non linear FEM software MARC be used to calculate the 3D deformed distribution of the cold roll forming machine frame, slide seat and bolster plate. 摘要以大型非线性有限元软件marc为分析工具，建立接触分析模型，对冷滚轧机床机架、滑台及垫板进行三维有限元弹性接触分析，给出机床三维变形状态的定量描述。
- The results suggest that the severity of stress sensitivity is linear inverse correlation with permeability of matrix, and linear positive correlation with logarithm of the permeability of fractures. 研究结果表明，致密砂岩应力敏感性损害严重，应力敏感性系数与基块渗透率线性负相关，而与裂缝岩样渗透率的对数线性正相关；
