本文提出了一种基于四阶累积量的ESPRIT超分辨阵列测向算法,该算法适用于任意形状排列的空间阵列。
In this paper, a fourth-order cumulant-based ESPRIT DOA estimation method is presented for arbitrary array.
本文报道了利用超瑞利散射(HRS)技术研究7-羟基喹啉(7HQ)的二阶非线性光学性质。
The second order optical nonlinearity of 7 hydroxyquinoline (7HQ) was investigation by using hyper Rayleigh scattering (HRS) method.
讨论了阶化向量空间和李超代数的基本性质。
The general properties of graded vector space and Lie superalgebras are discussed.
在此基础上,用冻结势方法计算了该超晶格系统的价带带阶;用四面体方法计算了该系统的联合态密度。
The valence-band offsets of such systems are calculated by frozen potential method and their Joint density of states has been computed by tetrahedron method.
三阶非线性光学(nlo)响应对全光开关、光信号处理和超快光通讯具有重要意义。
The third-order nonlinear optical (NLO) response is important in all-optical switching, signal processing, ultrafast optical communications and etc.
在比(AR)条件更弱的一类超线性条件之下,利用变分方法讨论了一类超线性四阶椭圆方程的无穷多解的存在性。
By means of the variational approach, in a condition weaker than(AR) the existence of infinitely many solutions of fourth-order elliptic equation is discussed.
本论文主要研究亚波长周期结构金属薄膜中的超传输现象和二阶非线性效应。
This thesis mainly shows the research of extraordinary optical transmission and second-harmonic generation from sub-wavelength structured metallic film.
采用二阶滤波环节平滑速度指令,实现了理想无超调的快速速度跟踪控制。
A second order filter is used to smooth the speed reference signal, and the perfect non-overshooting speed tracking is achieved.
从结构上可以将陡坡带分成同向断阶带、反向断阶带和单斜型断超带三种原型。
Structurally, they were classified into three types, synthetic fault bench, antithetic fault bench and monocline overlap fault belt.
建立了超线性二阶三个边值问题的一个正解存在定理。这里,非线性项是下有界的并且不需要是非负的。
An existence theorem of positive solution is established for a superlinear second-order three-point boundary value problem. Here, the nonlinear term is bounded below and need not be nonnegative.
本文报道了彩阶B超对宫外孕的诊断与分型58例。
The paper reported the diagnosis and type of ectopic pregnancy by colour scale ultrasound in 58 cases.
因为一个Z2-阶化群可以对应一个李超代数,所以对Z2-阶化群的性质进行了讨论。并对一些特殊类型的群确定了它们的Z2-阶化结构。
Since a Lie superalgebra can be associa ted with a Z2-graded group, properties of Z2-groups are discussed and Z2-graded structures of some special class es of groups are determined.
通过单轴拉伸与平面拉伸试验,得到了柔性接头弹性件橡胶材料“三阶五项式冶超弹本构模型参数,通过有限元计算证明了该模型的优越性。
Planar and uniaxial tests were implemented to achieve 3nd order 5th item strain model constant of theelastomer and it is proved this model was superior to others.
通过单轴拉伸与平面拉伸试验,得到了柔性接头弹性件橡胶材料“三阶五项式冶超弹本构模型参数,通过有限元计算证明了该模型的优越性。
Planar and uniaxial tests were implemented to achieve 3nd order 5th item strain model constant of theelastomer and it is proved this model was superior to others.
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