变换的

To address it,this paper expanded the method getting inverse matrix by adjoint matrix to ZN through constructing mapping regulations.

为减小该方法计算代价，将杜里特尔分解和克劳特分解求逆推广到ZN，解决了变换阵顺阶主子式模N互质，矩阵变换的逆问题。

Therefore, in the post-processing process, used one kind of algorithm how ask the Arnold inverse transformation using the athwart transformation matrix.

所以在后处理过程中，采用了一种利用逆变换矩阵来求Arnold反变换的算法。

In this paper a method based on discrete wavelet transform and discrete cosine transform is presented to compress color image.

中文摘要：本文给出了一种基于离散小波变换和离散余弦变换的彩色图像压缩方法。

The difference and relationship among design feature、machining feature and FEM feature are clearly presented. The necessary of feature mapping in product concurrent design system is discussed, and its theory and method are systematically studied.

详细分析了特征信息在产品生命周期中各应用环节的重要作用，揭示了设计特征、工艺特征以及分析特征的本质区别和内在联系，讨论了特征变换的必要性和特征变换的理论方法，指出建立一种柔性的特征表示模型，开发基于约束和参数驱动的特征造型系统，能方便的实现不同应用特征之间的变换，是实现CIM和CE的关键技术。

Last, this paper introduced some concepts of multiscale geometrical analysis and curvelet transform theory. Because curvelet can showed this feature more 'sparsely' in the function included singular curve or singular side in two dimension space or multi-dimension space. This paper provided a robust digital watermarking technology algorithm based on curvelet transform. watermarking information was embedded into coarse scale coefficients after curvelet transforming, choose right embedding strength. Testing proved it has good invisibility and robustness.

最后，介绍了多尺度几何分析和曲波变换理论的相关概念，鉴于曲波能对二维乃至高维空间中含奇异曲线或者曲面的函数进行更"稀疏"地表示这一特性，本章提出了一种基于Curvelet变换的鲁棒数字图像水印算法，该算法将水印信息嵌入到经曲波变换后的图像的粗尺度系数中，合理选择的嵌入强度，试验表明该算法具有较好的隐蔽性和鲁棒性。

This paper researches the wavelet transform of discrete-time sequences basing on dendriform filer banks in the signal processing field, analyses the theory and design method of two channel conjugate quadrature mirror filter banks and fast implement of discrete orthogonal wavelet transform and generation of orthogonal wavelets, and points out the internal relationship between them.

笔者从信号处理的角度研究了离散时间序列的小波变换利用树状滤波器组实现的方法，分析了两通道共轭正交镜象滤波器组理论及滤波器设计，离散时间序列的正交小波变换的快速实现以及正交小波的构造，指出了其内在联系，最后举例说明了正交小波变换通过共轭正交镜象滤波器组来实现信号分解和重构的全过程。

A plasma electron density profile in the HT-6M tokamak is obtained when an asymmetric Abel-inversion which depends on plasma shifts is applied to the signals of multichord interferometric measurement.

一种常用的非对称Abel变换是分离变量法，它的基本思想是把测量信号分成对称元和非对称的权函数，对称部分采用标准的Abel变换，变换的结果乘上非对称的权函数。

Firstly, we study the theory and application of jump points and sharp cusp points detection by wavelet transform. The studied object is from white noise to correlated noise. We have studied the properties of correlated noise in wavelet transform, and the properties of deterministic function with jumps and sharp cusps in wavelet transform.

首先研究了研究了小波变换在突变点与尖点检测中的理论与应用，研究的对象由白噪到相关噪声，研究了相关噪声在小波变换的性质，以及对具有突变点和尖点的函数在小波变换下的性质，有关这些性质，我们均以定理形式给出，并给出了详细的证明。

The metamorphic and mobile robot proceeds on flat road and slope of twenty degree and it changes motive postures meantime, then the torques of changing postures and proceeding are measured and the motive parameters are abstained through feedback measure while the arms and pedrails of the robot change their postures.

论文中通过对变形机器人在平坦路面上运动和进行20度斜坡的爬坡运动，以及在运动过程中各种姿态的变换的仿真，得出了运动过程中姿态变换和运动每个时刻所受到的力矩大小，通过反馈测量得出了姿态变换时加长臂和履带的运动参数。

This paper attempts to associate PFC technology with Quasi-Resonant DC/DC Converter and Synchronous Rectifier technology, to work out a novel switching power supply with higher efficiency and low contamination, which both achieved high power factor, improved effecting on electrical network and ensured high efficiency, furthermore, it is easy to be realized and controlled in circuit.

本文首先阐述了开关电源、功率因数校正技术和同步整流技术的发展及现状，对DC/DC变换的拓扑结构进行了选择，确定了带有隔离的准谐振(Quasi-Resonant)反激型电路，可以有效地降低损耗；接着本文对几种常见的PFC拓扑电路进行分析对比，从中选择了BOOST型电路，对工作在临界状况下的电路进行了分析，采用跟随输入电压的升压变换新技术，减小了电感体积，同时降低了开关管的电压应力，既简单又有效地实现了功率因数校正，并发现此技术值得推广；由于反激型变换器的效率一般都较低，所以本文在传统同步整流技术基础上对其加以改进，设计出一种新颖、高效的同步整流方案。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。