查询词典 overdetermined system

The total least squares based on singular value decomposition is a method of solving an overdetermined system of linear equations that is appropriate when there are errors in both and .

摘 要：全最小二乘法是一种解决超定线性系统的方法，它基于奇异值分解，适用于当和都存在误差的时候。

In one embodiment, the physical channel impulse response is considered time-invariant over the estimation period and a sufficient number of pilot symbol samples are taken so that the system is overdetermined.

在一个实施例中，物理信道脉冲响应在整个估计周期被认为是时变的，并采用足够的导引符号数，以便系统被整体确定。

Distinct from those methods, this paper's main idea is to reformulate CPs as an unconstrained minimization problem with the form of least squares of a system of overdetermined equations being equivalent to the CPs.

与这些方法不同，本文的基本思想是借助互补问题与某个超定方程组同解的事实，利用该方程组的最小二乘形式将原问题直接转化为无约束优化问题，这样不仅把问题转化为光滑优化问题，而且避免了引入光滑参数导致的不便。

With a large number of contiguous spectral observations provided by very high spectral resolution spectrometers (e.g., FWHM=0.1 nm), an overdetermined bilinear system was formed with Eq.

随着大量的连续光谱观测提供非常高的光谱分辨率分光计(例如，设置= 0.1海里)，利用超定双线性系统和情商的形成。

Under the Cartesian coordinates, with the applicationof least-square method for an overdetermined system of linear equations, the machinesettings can be calculated, which minimize deviations of a gear's real tooth surface from thetheoretical surface.

在笛卡儿坐标系下，利用线性超越方程组的最小二乘法，求出机床加工调整参数的修正值，使实际齿面与理想齿面误差达到最小。

The algorithm has following properties: Although the merit function has the form of least squares of a system of overdetermined equations, in the Newton equation of our algorithm, only the coefficient matrix of the system of overdetermined equations is used instead of its product as in Guass-Newton method for solving the least squares problems. That is, our Newton method is more like that for the system of nonlinear equations rather than that for LSPs. The global convergence is obtained for VLCP with vertical block P_0 + R_0 matrix; The local quadratic convergence rate is proved under the condition that the solution is BD-regular; Although there is only a Newton equation in our algorithm, the finite convergence property can be shown if matrix is vertical block P— matrix (without the hypotheses of strict complementarity).

该算法具有下列特点：所构造的价值函数虽然具有超定方程组的最小二乘问题的形式，但在基此建立的Newton算法中，其Newton方程的形式更象非线性方程组的Newton法中的Newton方程，仅利用了超定方程组的系数矩阵本身的信息，避免了一般最小二乘问题的Guass-Newton法中必须计算系数矩阵的乘积的工作量；对竖块P_0+R_0矩阵的垂直线性互补问题，算法具有全局收敛性；在解是BD-正则条件下，证明了算法的局部二次收敛性；虽然算法只含一个Newton方程，但对竖块P-矩阵垂直线性互补问题，算法具有有限步收敛性。

The palpable interweaving of the social and material worlds(which,on longer,in the late capitalist world system,characterizable as provincial,begin to coincide with the liberalization of the political in 1987 and the gender-specific in the 90s),is both expressed and signified by the system of recurrent imagery and then peculiarly overdetermined by such intertextuality of experiences and memory among users and pedestrians walking in this area.

The明显交织的社会和物质世界（其中，对长，中后期资本主义世界体系， characterizable省，开始配合的政治自由化在1987年和针对不同性别的90年代），既是表达和标志制度的经常性的图像，然后通过特有超这种互文的经验和记忆用户之间及行人走在这area。

The computations required are respectively to solve a decoupled group of overdetermined linear systems of equations, to solve a lower triangular linear system, and to carry out a number of simple subtractions.

对於前两种判别方法，我们也设计了相对应的最佳周期编码序列来减少通道杂讯以及数值误差的影响，以提高通道估测的准确度。

In this paper, the functions and the fashions of regularization are discussed when traveltime tomography is reduced to the solution of linear equation system, the functions of regularization include: constraint components which are underdetermined or lie in null space using overdetermined components and all kinds of known information; treat the uneven coverage of rays and the inaccurate datas by damping.

反射地震走时层析最终可归结为线性方程组的求解，本文讨论了在线性方程组求解过程中正则化的作用和方式。正则化的作用有：(1)用超定分量约束欠定分量和零空间分量；(2)用先验信息约束欠定分量和零空间分量；(3)对射线的不均匀覆盖进行阻尼；(4)对数据的不准确性进行阻尼。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。