查询词典 decomposition

The using of the technologies of DOA in the orientation estimating of interference is discussed, then an evolutive ESPRIT algorithm is put forward which avoids the eigendecomposition and is easily achieved. To the MUSIC algorithm, an easy eigendecomposition algorithm for Hermitian matrix is presented. It breaks away form the complex matrix decomposition such as QR algorithm. Basing on the whole matrix, the algorithm makes use of the multiplication operation of matrix and vector, which attains simpleness and is fit for DSP. In the field of DOA estimating of correlation interferences, spatial smoothing algorithm consumes too many array units.

讨论了DOA技术在干扰源方位估计中的应用，提出了一种ESPRIT演变算法，该算法避开了特征值分解，实现简便；在MUSIC算法的实现中提出了一个Hermitian矩阵特征值分解算法，该算法摆脱了复杂矩阵分解，从矩阵整体出发，主要的运算是矩阵与矢量的乘运算，算法简单，非常适合DSP芯片实现；在相关源的DOA估计中，空间平滑技术使阵元的损失非常大，本文提出了一种进一步降低阵元消耗的平滑技术—随机空间增益法，其在运算量上的增加很小，但对于相干源的去相关确是有效的。

In the modified method, we use orthogonal decomposition so as to delete items which lead to linear dependence of gradient in active constraints. Therefore the Hessian matrix of the DQP subproblem is positive definite.

在改进算法中，我们通过正交分解删去了有效约束函数中引起梯度线性相关的项，从而保证了DQP子问题中的目标函数中的Hesse阵正定。

Heterotrophic bacteria played important role in the course of decomposition of soil organic matter in mangroves.

4异养细菌在红树林土壤有机物分解过程中有着重要的作用。

In this paper, a multiresolution decomposition of hexagonal sampled images based on a separable filter bank is proposed.

但是这种采样方式并不一定能精确刻画图像的内部结构和人眼视觉系统的特征。

The result showed that Neutral Blue BNL dye has good catalytic activity to hexogen, and the thermal decomposition of hexogen was brought forward.

结果表明，染料中性蓝BNL对黑索金的热分解表现出了较好的催化活性，使黑索金的分解过程提前。

The thermal decomposition of hexogen (cyclotrimethylene-trinitramine) has something to do with the burning performance of propellant. Addlition of a little catalyst was an effective method of adjusting the burning performance of propellant.

黑索金的热分解特性与推进剂的燃烧性能密切相关，添加少量催化剂是调节推进剂燃烧性能的有效方法。

The experiments of series thermal analysis point out that this kind of plasticizer is beneficial to the thermal decomposition of double base composite propellant and hexogen, and its application in the modified double base propellants could improve combustion properties.

介绍了一种新型含能的叠氮类增塑剂PDADN 合成、结构及物理化学性质，系列热分析实验表明，它有利于双基组分及黑索今的热分解，指出它在改性双基推进剂中将可改善燃烧性能。

The decomposition of model substances—hexose catalyzed by strong acidic resins instead of inorganic acids was studied.

开展了以固体酸替代无机酸降解模型物质六元糖的研究。

The project proposed and established the strict unique mathematical model of instantaneous frequency aiming at the currently existed problems in Hilbert Huang Transform form the viewpoint of physical connotative meaning; proposed and established the strict mathematical model of general intrinsic mode signal based on the concept of general continuous intrinsic mode signal and the compositive principle of practical general intrinsic mode signal; researched and proposed the fitting method of envelope lines in HHT from the viewpoint of theory, conquered the blindness and random in quondam EMD envelope line fitting and boundary treatment; developed a virtual time-frequency analyzer based on general intrinsic mode signal decomposition to open out the local time-frequency characteristics of nonlinear and nonstationary signal more deeply and accurately.

本项目针对希尔伯特-黄变换现阶段存在问题，从物理内涵的角度提出并建立了瞬时频率严格的唯一的数学模型；基于连续性的一般固有模态信号的概念和实际信号的一般固有模态信号的组成原理，提出并建立了一般固有模态信号严格的数学模型；从理论角度研究并提出HHT中的包络线构造方法，克服了原EMD的包络线构造和边界处理的盲目性和随意性；研发一台基于一般固有模态信号分解的虚拟式时频分析仪，使之可以更深入、准确地揭示非线性非平稳信号的时频局部特征。

Through promoting matrix counter ,this article simply introduced the multinomial matrix ,compared with the good and bad points of the two counter algorithms in different, illustrated the utilization of counter in solving homogeneous line good equation sets, and discussed the decomposition of the Multiple polynomial matrix.

本文对逆矩阵的简单介绍后，阐述了多项式矩阵逆的定义及性质，比较了两种多项式矩阵逆的算法。讨论了在不同情况下利用逆在解线性齐次方程组的方法。最后探讨了多元多项式矩阵的分解问题。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐