查询词典 waveform

The theory of digital synthesizing technology and its application in arbitrary waveform generator are introduced. A arbitrary waveform generator and its software are designed and tested.

介绍了直接数字合成技术的原理及其在任意波形发生器上的应用，设计了任意波形发生器和多类信号的混合发生软件，并对任意波形发生器的性能进行了测试。

Further reflective type measurement can be implemented by THz-TDS. Interface information is obtained from the measured THz waveform reflected from stacked burned and normal porcine skins for simulating partial burned skin. Reflective wave from surface, interface between burned and unburned, back surface of unburned porcine had been correctively and clearly observed. Waveform and time of flight matched well with the original reflected waveform of normal and burned porcine skin.

我们进一步应用兆赫光谱技术来作样品反射式讯号的量测，可以观察到用来模拟部分烧伤的皮肤的由一层烧烫伤以及一层正常的猪皮样品堆叠成的结构中的界面，经由这个模拟结构表面以及内部界面和背面反射的讯号波形都可以正确清楚地判别，所得到反射的波形以及表面和界面间的飞行时间和个别量测正常及烧烫伤样品的结果吻合。

The conclusion is gained that measured waveform and simulated waveform of un-faulted feeder lines are anastomotic and have great comparability, but those of faulted feeder line has much difference compared with its simulated waveform.

比较各馈线零序电流的实测波形和由测后模拟方法所求解的波形发现：健全馈线零序电流的实测波形和由测后模拟法所求解的波形相吻合，具有极强的相似性；而故障馈线零序电流的模拟波形是在假设其正常工作的条件下获取的，实测波形和模拟波形差异较大。

The spectrum analysis of the air-ultrasonic waveform indicates that when the matcher thickness is calculated at the highest spectrum and the subsequent higher spectrum of the pulse waveform, it can obtain a better result. But all the highest spectrum of the air-ultrasonic waveform moves to the high frequency zone in the experiment, which is a possible important reason that the testing extent of the air-ultrasonic transducer is limited.

经对空气超声波形进行频谱分析后发现用脉冲波形的最高谱线及次高潜线对应的频率计算匹配层厚度，可得到较好的匹配结果，但是空气超声波形的最高谱线均移向高频段，这可能是造成脉冲空气超声换能器可检测的范围有限的一个重要原因。

A new method that transforms bitlevel waveform polynomial to word-level polynomial model is given, allowing for simple composition This method offers an efficient way to determine whether two descriptions from different design levels are equivalent, so component reuse, synthesis and verification across design levels can be realized. In addition, an experimental system using C language is established, including modules such as representation of waveform polynomial, decision of path senstization, delay computing, clocking based on single-period sensitization, clocking based on multi-period sensitization, test generation considering noise and transformation from bit-level waveform polynomial to word-level polynomial model. They respectively used to test models and techniques proposed in this paper.

另外，基于C语言本人设计开发了一个实验软件系统，该系统包括波形多项式表示模块、敏化通路判定模块、延时计算模块、单周期敏化的最小时钟周期精确确定模块、多周期敏化的最小时钟周期确定方法模块、考虑噪声的测试生成模块和位级波形多项式描述转化成字级多项式描述模块，分别用于对本文各章中提出的自动化设计的模型和方法进行实验验证。

After summarizing the waveform relaxation methods and domain decomposition, we finish some research on optimal Schwarz waveform relaxation algorithm as follows: In the first part, we apply Schwarz waveform relaxation methods on telegraph equation system to get optimal transmission conditions to speed up the algorithm.

在对波形松弛算法以及区域分解进行了综述性介绍后，本文对Schwarz波形松弛迭代算法具体进行了以下研究：首先，本文将在电报方程系统上应用Schwarz波形松弛迭代算法，通过强制加入新的局部传输条件分别给出了两种加速算法并通过定理保证了其优化后的收敛性，进而得到优化Schwarz波形松弛算法，然后通过数值试验对传统Schwarz波形松弛算法与优化Schwarz波形松弛算法进行了比较，研究了收敛率与优化系数的关系，找到了使算法最优的系数取值；最后得出优化后的Schwarz波形松弛算法优于常规Schwarz波形松弛算法的结论。

AbstractBased on the character of T/P satellite altimetry return waveform, we present a method to retrack the waveform data and determine the retracking correction with function approach, then improve the precision of altimeter observations in offshore.?For the South China Sea region,?we have processed four cycles T/P altimeter waveform data.

根据测高卫星返回波形的特征，给出了由Topex/Poseidon卫星波形数据进行波形重构的方法，并采用函数逼近算法确定波形重构改正量，进而改善测高卫星近海岸海面高观测值的精度。

According to poly phase rectification theory, the generator voltage waveform, generator no-loaded potential waveform, the diode's breaking and short waveform are analyzed based on the analysis of armature winding internal potential.

以分析电枢绕组电势为基础，依据多相整流理论分析了发电机的电压波形、空载电势计算以及二极管断路和短路两种故障工况下的电压波形。

Such as color-free waveform memory, BIOS measurements of the A zone and D zone, if the A zone-free waveform, and then measuring the value of Goldfinger's overcast and voltage waveform and, if normal, and then measured the resistance BIOS on There are mainly bad chip, BIOS may also be bad, in the case of BIOS area of the A wave form D, no, bad for the BIOS.

如色度显存无波形，测BIOS的A区和D区，如果A区无波形，再测金手指上的阴值及波形及电压，如果正常，再测BIOS的阻值，就有为主芯片坏，BIOS也有可能坏，如是BIOS的A区有波形D区无波形，为BIOS坏。

The proposed receiver-based PLC method detects the pitch lengths of the waveform in the two sides, determines the number of pitch cycles and pitch lenghts to be placed into the lost packet, and interpolates the pitch waveforms from the two sides to synthesize pitch waveforms. This method is called Time-Proportion Based Pitch-Waveform Interpolation. When compared with other waveform reconstruction methods, e.g.

本论文提出的接收端补偿方法，首先会去侦测遗失封包的前一个与后一个封包内的基周长度，接著决定重建出的基周在遗失封包内需要布放的个数与个别长度，最后内差出各个基周的波形，此方法我们称之为时间比例式基周波形内差法。

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。