查询词典 wave theory

We proposed the time-changed dynamic models of radar signals based on dynamic theory, and can analyze quality and quantity of the deinterleaving pulse train;(2) We proposed the algorithm to computer selfsimilarity exponent and detect successfully the object echo buried in noise according to self-similarity of noise and nonsimilarity of sine wave;(3) We also proposed a nonlinear dynamic filtering detection model.

1根据动力学理论，提出了雷达信号的时变动力学模型，利用这个模型可以对已经分选出来的雷达信号进行定性和定量分析；(2)提出了快速计算自相似性指数的算法，并利用噪声和正弦波分别具有自相似性和不具有自相似性的特点，成功地检测到淹没在噪声中的目标回波；(3)提出了一种非线性动力学滤波检测模型。

By combining the theory of aerodynamics with water hammer equation and wave equation of surge tank a mathematical model for this type of surge tank is established.

为研究制气式调压室的运行机制，运用空气动力学原理，结合管道水锤方程、调压室波动方程，建立了制气式调压室的仿真数学模型。

The EIM was introduced at first. By solving the scalar wave equation within cladding of TIR-PCF, the fundamental space-filling mode and the effective index of the cladding were calculated. The logical effective radius was selected, and the propagation properties of TIR-PCF were discussed with the classical theory of step-index fiber.

深入研究了有效折射率模型的构造，通过求解标量波动方程得到了光子晶体光纤包层基空间填充模，得出光子晶体光纤的包层有效折射率；选择了较合理的有效半径，利用经典的阶跃光纤理论来研究光子晶体光纤的传输特性。

In the present work, a theory of multiple bunching including the effect of space-charge is developed through the use of space-charge wave concept.

本文采用空间电荷波的观念，讨论了包括电子相互作用的多次聚束问题。所得结果，在电流接近以零为极限时，简化成费恩柏格E。

Application program manifests that the model simulates correctly the sonar's principle of sound reflection wave and sound shadow. The application is useful in theory research and simulation training especially.

软件实现结果表明，所给方法能正确仿真高频图像声纳的工作原理，准确表现声纳回波和声影图像，在理论研究、尤其是模拟训练领域具有重要应用价值。

In this paper,based on plane-wave sbielding theory .the model of electromagnetic shielding effectiveness on single-layer medium is investigated.

而不同的包装材料，其防电磁干扰的能力平差万别，因此，包装材料的选择相当重要。

Works accepted the French New Wave period of the long shot theory and the combined effect of the Chinese poetic films, natural and simple, lens concise, conveys a kind of gray romance.

作品接受了法国新浪潮时期的长镜头理论和中国诗意电影的双重影响，自然朴实、镜头凝练，传达出了一种灰色的浪漫故事。

By applying the sinusoidal wave mode to simulate the rugged surface of bridge deck,accounting for vehicle-bridge interaction and using Euler-Bernoulli beam theory, a coupling vibration model of vehicle-bridge system was developed. The model was solved by mode analyzing method and Runge-Kutta method, and the dynamic response and the resonance curve of the bridge were obtained. It is found that there are two resonance regions, one represents the main resonance while the other the minor resonance, in the reson...

通过用正弦波形模拟桥面的不平和考虑移动车辆-桥梁间的相互作用，在Euler＿Bernoulli梁理论的基础上建立了一种车桥系统的耦合振动模型·利用模态分析法和Runge＿Kutta法对模型进行数值求解，获得了车桥系统耦合振动的动态响应和共振曲线·发现车桥耦合振动的共振曲线中存在两个共振区域，一个反映主共振而另一个反映次共振·讨论了桥面不平、桥梁振型和车辆间的相互作用对系统振动的影响·数值结果表明，这些参数对系统振动的影响很大，桥面不平和振型对车桥系统耦合振动的影响不能忽略，设计车速应该远离临界车速

Scattering wave ; scattering theory ; heterogeneity ; scattering characteristic ; metallic ore

散射波；散射理论；非均匀性；散射特征；金属矿

Optical aperture synthesis space explore wave front interference theory research.

光学综合孔径空间探索波前干涉理论研究。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。