查询词典 Hilbert

The main content included in the paper is as follows: The European identification methods of type of wave load is introduced and compared with the methods in Code of Hydrology for Sea Harbour. In order to reveal their difference, they are tested by the experiment data. The relation between phase and frequency are analysed through the Hilbert and wavelet transformations. And a new method of identifying the breaking wave load is set up based on the linear relation between wave height and wave press before the breakwaters. The probability distribution is tested by the statistic of experiment data. Based on the experiment data, the paper analysed the influence of reflection coefficient according to different factors, and its property is got. The work property of charmfered breakwater under breaking waves is analysed. Through the statisticof its wave press and wave force the distribution of press on the breakwater front face and its reducing effect to breaking wave force are proved.

本文基于此，通过实验研究，主要作了如下工作：介绍了欧洲波态划分方法，分析与我国方法的异同，通过实验进行了验证；通过 Hilbert 变换和小波变换对波浪破碎的相频特性进行了分析，通过建立波高与波压关系来判别破碎波浪力；对破波条件下波浪力的分布进行了统计研究，验证了其分布类型；利用实测资料，分析了不同因素对反射系数的影响，得出了不同周期、波浪要素、破碎率下反射系数体现的不同规律；分析了破碎波作用下削角堤的工作特性，通过对堤面所受的波压力和总力的统计分析，验证了压强分布规律及削角堤对波浪力的削减作用。

Fringe Analysis with Hilbert Transform and Its Application in the Measurement of Aspheric Mirror .

希尔伯特变换条纹分析法及其在非球面镜测量上的应用。

Finally, this paper studies thoroughly a novel approach to detect rotor bar breaking fault, which is based on the perfect combination of the Hilbert Transform and digital f

在上述研究的基础上，针对山西娘子关发电厂7#给水泵（YK2300-2/990笼型异步电动机），研制大型异步电动机状态监测与故障诊断系统，目前已完成安装调试，试运行阶段效果良好。

Firstly, a method to estimate the rotor speed, which is based on BP neural network, is introduced in this paper. Secondly, the Park Vector approach is used to monitor and diagnose the inter-turn fault of the stator winding. Finally, this paper studies thoroughly a novel approach to detect rotor bar breaking fault, which is based on the perfect combination of the Hilbert Transform and digital filter.

具体工作如下：采用BP神经网络对异步电动机转子转速进行无速度传感器估计；对定子绕组匝间短路故障，采用派克矢量方法进行监测与诊断；对于转子断条故障，详细介绍了一种新的基于希尔伯特变换与数字滤波的在线监测方法。

The adaptive filter approach, the Park transform approach,the Hilbert transform approach and the instantaneous power approach are usually utilized to detect the rotor bar breaking fault on-1ine.

针对异步电动机轴承故障，本文就基于振动信号分析和定子电流信号分析的轴承故障检测方法分别进行了讨论。

The online normalization of the interference spectrum in frequency domain is implemented with Hilbert transform.

通过Hilbert变换来实现频率域干涉光谱信号的在线归一化，使归一化过程不受光源光谱形状以及谱峰位置变化的影响。

Firstly, through applying Hilbert-Sobolev norm to measure fidelity term, a total variation filter is used to smooth the normal vectors of the level curves of a noise image. And then, a model is constructed to find a surface which fit smoothed normal vectors.

该方法首先引入负指数Hilbert- Sobolev范数度量逼近项，对图像水平曲线的法向量场进行全变差正则化磨光，然后构造出一个曲面拟合模型，拟合磨光后的流场。

In the same time, after shortly review the Halclanes description of the quantum Hall effect on 2-sphere S2, we obtain the corresponding noncommutative algebra An and the Moyal structure of the Hilbert space.

同时在回顾了Haldane在二维球面S~2上对量子Hall效应的描述，我们构造了S~2的非对易代数及其Hilbert空间的Moyal结构。

By an appealing parameterization and projection techniques that use the reproducing kernel Hilbert space norm,recursions for the effective parameters and a sparse Gaussian approximation of the posterior process are obtained.

通过利用参数化和再生核Hilbert空间范数的投影技巧，得到优化后的参数和后验过程的稀疏高斯逼近。

In this dissertation, some researches are developed to overcome these disadvantages and to improve the image compressing quality with fractal Peano-hilbert scanning curve.

对此，本文结合DCT变换的特性，利用分形的Peano-hilbert扫描曲线，对基于DCT变换的图像编码方法进行了研究，并提出了改进方法。

We have limited budget let me know if you can do this competitively.

我们有限的预算让我知道如果你能做到这一点竞争力。

We don't know how other critters breathe--lizards, for example.

我们还不知道诸如蜥蜴之类的动物如何呼吸。