查询词典 signals

As a result, there are no specific advantages of processing signals in frequency domain, and we propose to directly process signals in time domain. By this way, it is observed that in time domain the signal signatures can be arranged into groups of orthogonal components, leading to a very natural group-wise symbol recovery scheme. To realize this figure of merit, we propose a GSC-based receiver, which also takes into account the mitigation of channel mismatch effects caused by the channel temporal variation and the imperfect estimation.

因此，吾人提出直接於时域中处理讯号，於时域中，吾人发现讯号特徵矩阵能够被分为数个拥有正交元素的群组，能自然地被用来设计群组式讯号侦测技术，为了实现此特性吾人提出一个GSC接收机，其能同时抑制通道时间变化与通道估计错误所产生之通道偏差效应。

It is proved that a signal can be decomposed into the linear superposition of a series of component signals by singular value decomposition using these two kinds of matrices. However, the component signals obtained by the first kind of matrix are orthogonal with each other, while those obtained by the second one are correlative with each other.

文中从理论上证明了在这两种矩阵方式下，奇异值分解都可以将信号表示为一系列分量信号的线性叠加，但是第一种矩阵获得的分量信号是彼此正交的，而第二种矩阵获得的分量信号则不具有正交性。

The control system uses the PLC will be collected at the scene encoder signal, close to switching signals, the sensor signals at different angles for each part of the working conditions so as to control various parts of action or alarm output.

该控制系统用PLC将采集到的现场接近开关信号、传感器信号在不同角度范围比较各部分工作条件从而控制各个部分动作或报警输出。

The analysis of the optical signal transmission characteristics and the physical parameters provides the theoretical foundation for optimizing the design and improving the performance of AWG; and the optimizing design numerical value calculation method solves the complex problem of the optimizing design of the AWG, it can also provide a way for AWG computer aided design system; the AWG optical signal processing analysis provide a way for optical signal Fourier transform, serial and parallel transmission, circle shift, matrix transform and differential processing; the optical signal processing characteristics of AWG develop AWG to use for new field, and the optical signal processing will play an important role on all-optical networks in the future; by the definition of the wavelength transform matrix of the AWG, the signal output positions that come from these input signals of the different wavelength or the same wavelength but the different input ports and carrying different signals can be accurately determined, and the wavelength transmission matrix plays an important role for analyzing the routing of the complex optical network, or designing the network nodes such as the optical path add/drop multiplexer and optical cross connect device; the wavelength transmission matrix also provides a method for monitoring and managing the wavelength transmission of the optical network nodes; e analysis of the AWG' OXC node structure and wavelength routing provides a way for realizing the OXC, especially for multi-path/multi-wavelength OXC and the intelligence node of the optical networks; by the studying of the control plain characteristics, router, traffic engineering, program and the improved arithmetic of the wavelength routing, the method for realizing the GMPLS' OXC optical transport network is provided, and it play an important role for the study of the automatic switched optical network; the time-frequency analysis can provide more information about the dispersion and energy changes of .the pulsed light transmission in the singlemode fiber, it also provides more useful parameters for analyzing the dispersive accumulating and dispersive compensating.

AWG光信号传输特性与相关参数的分析，为进一步优化设计AWG及提高其性能提供了理论依据，而优化设计计算数值方法解决了AWG优化设计计算的复杂问题，为进一步建立AWG的计算机设计系统提供了基础；AWG光信号处理的特性分析，提出了AWG应用的新领域，为光信号的傅立叶变换、串并传输、循环移位、矩阵变换、微分处理等提供了一条途径；波长传输矩阵变换关系的建立，不仅得到了确定多路AWG每路信号从输入端口到输出端口的准确输出位置的方法，而且在分析应用AWG实现复杂的光通信网络路由的连接、特别在设计分插复用器和交叉连接器等网络节点时有重要的作用，能有效而准确地确定波长的路由关系，为实现节点波长传输路由的监控和管理提供有效手段；基于AWG的OXC结构和波长路由的确定为实现OXC技术、特别是多路多波长的OXC和光网络的智能节点技术提供了有效的方法；控制平面的特征、路由器、流量工程、程序及改进的波长路由算法的研究实现了基于GMPLS的OXC光传送网络的控制平面，为建立自动交换光网路提供了一定的基础；时频分析可以更直观和更清晰地描述脉冲信号在单模光纤中传输色散和能量的变化，为色散积累和色散补偿提供有效的分析参数。

Confronting the run of RHIC, the study about the signals of deconfinement and partial restoration phase transitions under extreme environment is the hot topic in high energy circles. In particular, because the FM signals: dileptons and photons can pene- trate the medium almost undisturbed and are considered to be the clearest ones, have drawn much attention.

随着相对论重离子对撞机RHIC的开通运行，关于高温高密极端条件下退禁闭相变和手征对称部分恢复的相变信号的研究是当今高能核物理界的重大热点。

These signals are processed by the modules; the system then collects the resulting data and compares them with the standard values of the corresponding signals to determine if they are within the permissible range of error.

信号经模块处理后，系统采集结果数据，并将之与该信号对应标准值进行比较，判断其是否在误差范围内。

The method of correcting distorted signals in frequency domain for the simultaneous measurement of pressure distribution was discussed, which was used to eliminate amplitude error and the phase lag between signals sampled from different channels and insure them have good synchronization in time.

利用频域修正的方法可以对压力分布同步测量中的畸变信号进行反演，以消除输出信号的幅值误差和相位差，保证各个测压通道得到的信号在时间上具有良好的同步性。

It is quick and precise in measuring and getting the analysis results,displays the parameters of phase and amplitude value of signals in imaging way,and has friendly man-machine interface,and all of these offer an intuitive and convenient means for the real-time monitoring and the analysis of the parameters of differential gain distortion and differential phase distortion in video chroma vector signals.

形象地显示信号相位、幅值等参数的方式和友好的人机界面的设计，为实时监控、分析色度矢量信号的微分增益失真和微分相位失真等参数，提供了直观、便捷的测量手段。

Firs t, we discuss the spatio-temporal structure of distributed signals, with an em phasis on the physics behind the signals and results on sampling.

首先，我们研究信号在时间和空间中的分布，了解信号的物理特性以及抽样采集的影响。

The total and of the pitot tube were measured when the opening of the regulating valve was changed with keeping the flowrate fixed as well as unchanged the opening of the regulating valve with invariable flowrate. Then, the dynamic pressure signals were analysed with the method of PSD after computed and normalized and a better result of frequency-domain distribution was obtained. In addition, the average energy was defined and used for the analyzing of disturbance signals of regulation valve.

首先利用皮托管对相同流量不同开度及相同开度不同流量下的总压及静压信号进行测量，然后经过计算得到动压信号并进行归一化处理；其次，对归一化处理后的动压信号进行功率谱分析，取得了较好的频域分布结果；同时定义了信号的平均能量，并将其应用到了调节阀扰动信号的分析中。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。