用信号表示

The material can be presented as text, graphics, animated graphics, audio, video, or a combination of these.

材料是用文字、图像、动画、音频信号、视频信号或以上方式的综合表示出来。

An electrical signaling technique in which all control and data signals are represented by a voltage difference from a common ground.

电子信号的一种发送技术。在该技术中，所有的控制和数据信号都用信号线与公共地的电压差来表示。

It is customary to plot the amplitude ratio in decibels and the phase angle in degree against the common logarithm of the input frequency.

在绘图时通常幅值用分贝表示，相角用度表示，输入信号的频率按常用对数取值。

In digital signal and image processing and digital communications, a continuous signal is usually represented and processed by using its discrete samples.

在数字信号和图像处理以及数字通信中，一个连续信号通常用它的离散采样表示。

Under this situation, sparse signal expansion theories, a kind of new multiscale analysis theory that has been developed in recent years, possess a better performance in detecting the singularities of the signal with straight line or curve in high dimensional space and can be used to express signals with sparse coefficients.

而稀疏信号表示理论是近几年发展起来的一类新的多尺度分析方法，它们对高维空间中具有直线或曲线奇异性信号具有良好的检测性能，可以用稀疏的系数来表示原信号。

Then we re-sampling all signals defined on the surface of the original triangle mesh at the vertices of the spherical subdivision mesh and get a set of discrete geometry signals with subdivision topology which can be compressed by using spherical wavelet.

于是，在参数域内位于细分网格顶点处对定义在参数网格表面上的各种几何信号进行重采样，可得到新的具有细分结构的几何信号近似表示原始几何信号，以此满足球面细分小波对处理对象的细分结构要求，从而使得用球面细分小波对几何信号进行压缩得以实现。

A method for shifting a pitch of acoustic signals, which are expressed in terms of a series of digital signals, to an optional pitch, uses a compacting and/or expanding process on the time axis and cross-fades a fade-in acoustic signal, stored in a memory.

一种音程变换方法，用时间轴压缩扩展和交叉渐变处理将数字信号序列表示的音响信号的音程变换为任意音程。将音响信号存储到存储器中。

This reduces the impact of a short circuit and assures that the bus does not conduct current through the aircraft. A Manchester code is used to present both clock and data on the same wire pair and to eliminate any DC component in the signal (which cannot pass the transformers). The bit rate is 1.0 megabit per second (1 bit = 1 μs).

该结构可以削弱短路对总线的影响并保证总线不会传导在航空器中流转的电流。1553总线用曼彻斯特码表示导线对上的时钟信号和数据信号，这可以去除信号中的直流成分，因为直流成分不能通过变压器。1553总线的波特率是1兆位每秒，即每微秒传输一位信号。

Transient signals to be restored can be expressed as a linear combination of wavelets whose weight coefficients, dilations and shifts are calculated by the conjugate gradient algorithm in terms of the least mean squared energy criterion.

该方法将要复原的瞬态信号表示成一组子波函数的线性组合，在最小均方能量准则下，用共轭梯度算法求解子波函数的线性组合的幅度、尺度和延时参数。

Firstly, after analysis the modules and models that constitute ATE platform, a signal modeling method based on Object-Oriented Analysis is introduced, and some signals' model structures and operations are described. To embody the test requirement in the resource configuration, the complicated signal's generation process is analyzed from the relations between instruments and signals, subsequently, a series of recursion expressions are put forward to acquire the signal's origination through the deduce process layer by layer. Going with the recursions, ATE can get the specifications P and In , which present the cost and orders of the signal generation, and can be used to evaluate its generation complexity.

首先，在分析了构成通用平台ATE各模块环节和功能模型相互关系的基础上，引入了基于面向对象分析方法的信号模型，从语义上描述了一些信号在结构和操作过程中的实现方法；为了将信号的测试需求反映到测试资源的配置过程中，利用OOA中的关键概念，从仪器资源与信号的相互关系着手，分析了由多种仪器生成一种复杂信号的经过，基于此，提出了由一种复杂信号逐层分解，最终获得其生成资源的递推表达关系；通过这样的递推过程，使ATE可以获取生成该信号的成本与次序的指标P和In，这些可以用来考核生成该信号时以资源信息表示的复杂程度。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。