引入相应的格林空间随机系统,应用格林空间投影理论和新息分析方法,得到了不定二次型的最小值及其存在条件。
Then, by introducing a corresponding Krein space stochastic system and applying projection and innovation analysis, the minimum of indefinite quadratic form and its existence condition are derived.
它说了什么呢?它是三维空间中通量的格林公式。
这里的“格林”和格林公式的“格林”是同一个人,因为这是格林公式在空间中的表述。
The Green here is the same Green as in Green's theorem, because somehow that is a space version of Green's theorem.
如果知道了,向量空间在单连通区域内处处有定义,那么就可以毫无顾忌地,在这个区域里使用格林公式了?
Well, if you know that your vector field is defined everywhere in a simply connected region, then you don't have to worry about this question of, can I apply Green's theorem to the inside?
这张图片大致拍摄于格林尼治时间凌晨0:38,此时,国际空间站正位于南大西洋上空。
The image was taken approximately 38 minutes after midnight Greenwich Mean Time (GMT), while the International Space Station was located over the southern Atlantic Ocean.
本文提出一个方法,来推求在(3)式中所定义的、在全空间中的格林张量函数。
In this paper, we suggest one method of finding the Green tensor functions in whole space, which are defined in formula (3).
利用积分方程方法以及半空间并矢格林函数的快速算法对埋地目标体矢量电磁散射进行正演计算。
Forward electromagnetic scattering by buried objects is computed with the integral equation method and efficient algorithm for half-space dyadic Green's functions.
使用离散复镜像方法(DCIM)快速得到平面分层介质的空间域的闭式格林函数,避免了费时的索末菲尔德积分。
To avoid calculating the time-consuming Sommerfeld's integrals, the discrete complex image method (DCIM) is employed to obtain spatial domain closed-form Greens function for planar-layered media.
求解了运动媒质中电磁势方程的格林函数,给出了无界空间的推迟势。
Solving the Greens functions of electromagnetic potential equations in moving medium, the retarded potentials in unlimited space are obtained.
在必要的空间计算中,该方法又利用了格林函数节块法的原理求解形状函数的空间分布,使空间网格距可以达到有限差分法的近20倍。
In spatial calculation, the NGFM is used to get the distribution of shape function, and it's spatial mesh can be nearly 20 times larger than that of Diffinite Differential Method.
首先用点源函数和格林函数法,推导出拉普拉斯空间线源解。
This paper presents the solutions in Laplace space derived by point-source function and Green's function.
分析了实空间离散格林函数的特点和平面声全息重构卷积计算的特殊性,推导了在重构条件下二维循环卷积与重构卷积的关系。
Characteristics of the discrete real-space Green′s function and particularities of the discrete algorithm of the planar acoustical holography reconstruction convolution are analyzed.
应用此模型,并结合分层介质中的并矢格林函数,分析了贴片天线的辐射阻抗、空间波辐射效率等特性。
Using this model and the relevant dyadic Green's function, some characteristics of a rectangular patch antenna near resonance, such as radiation resistance and space wave efficiency, are analysed.
根据物理光学方法(PO)和半空间并矢格林函数,推导出半空间中理想导体的散射场。
The scattering fields of a perfect conducting object are evaluated by the physical optics (PO) and half space dyadic Green's function.
格林函数法是将任意源激励的响应表示为空间各点激励源响应的叠加。
Green function method is the approach that arbitrarily response by the source excitation is expressed as superposition of excitation source at all space point.
该方法采用二级离散复镜像方法求解空间域的格林函数,与直接数值积分方法相比,提高了计算格林函数的速度。
The two-level discrete complex image method is used to compute the spatial Green's Function, and thus improves the speed to compute Green's function compared with the direct integral method.
格林定理及其应用、三重积分、空间中的线积分和面积分、散度定理、斯托克斯定理应用。
Green's theorem and applications, triple integrals, line and surface integrals in space, Divergence theorem, Stokes' theorem; applications.
本文采用半空间格林函数分析分层介质中的电磁场散射问题。
Some scattering electromagnetic problems in the multilayered media are analyzed using the Half-space Green's functions in this paper.
既对普通的微分方程来说又在多面的空间内,献身于格林函数。
Part VI is devoted to Green's functions, both for ordinary differential equations and in multidimensional spaces.
既对普通的微分方程来说又在多面的空间内,献身于格林函数。
Part VI is devoted to Green's functions, both for ordinary differential equations and in multidimensional spaces.
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