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In chapter five, the base band signal process of CDMA base station simulator system is introduced, including channel coding and decoding, interleave and disinterleave, PN sequence generator, orthogonal spread spectrum and quadrature Spreading, scrambling code, power control, digital forming filter, the capture and track of PN code, dispreading and demodulation, etc. Some FPGA design graphic and waveform simulation of base band transmitter module is given and realization algorithm of base band receiver is discussed in detail.

第五章介绍了CDMA基站仿真系统的基带信号处理过程，包括信道编译码、交织与去交织、PN码发生器、正交扩频与四相扩频、扰码、功率控制、数字成形滤波器、PN码的捕获与跟踪、解扩与解调等，并给出了基带发射机模块的部分FPGA设计原理图和波形仿真，详细论述了基带接收机模块的实现算法。

It can realize the function of the traditional oscillograph but also can store, reproduce, analyse and deal with the waveform.

它不仅可以实现传统示波器的功能，而且能够存储、再现、分析和处理波形。

Make optical power as high as possible and waveform displayed by oscillograph big enough.

使光功率尽量高，示波器显示的波形足够大。

Experiment results prove such method can effectively improve output current waveform of inverter.

实验证明了该方法能有效地改善逆变器的输出电流波形。

Finally the experimental waveform of the output power and overall performance analysis.

最后给出了该电源的输出实验波形及整体性能分析。

The spread paths of common mode and differential mode noises in an SMPS under electrical fast transient/burst are studied and discussed. Hereby for single transient pulse, the vector fitting method is adopted combining rational function approximation according to the tested waveform to construct the a mathematical modeling of frequency, then a pole-residue representation is obtained by partial fraction expansion, and the last step are to draw a state space description and equivalent circuit.

在分析开关电源进行电快速瞬变脉冲群骚扰试验时共模和差模噪声的传播途径的基础上，对于单个脉冲，根据试验数据采用矢量匹配法结合有理函数逼近构造得到频域下的数学模型，通过部分分式展开得到零极点表达式，并最终得到相应的状态空间方程以及等效电路。

This paper introduces the main components of the anticollision facilities of superhighway and their functions, and in the light of the damage extents of the anticollision facilities such as the steel- pipe column, waveform guard plate , clog- proof block, and isolated gate, etc.

介绍了高速公路防撞设施的主要构成及其功用，针对钢管立柱、波形护栏板、防阻块、隔离栅防撞设施被毁坏的程度，提出了相应的维修方法。

PVI automatically and continuously calculatesthe respiratory variations in the plethysmography waveform amplitude.

PVI 自动连续地计算出在脉搏氧饱和度仪的描记图中的波形振幅中的呼吸变异。

The simulation and part of experiment results show that this kind of optical current sensor has a good response waveform and amplitude, frequency characteristics in proper parameters.

仿真和部分实验结果表明此种光学电流传感器在合适参数下具有较好的响应波形以及幅值、频率特性。

Objective To evaluate the relationship between a proximal artery stenosis and downstream Doppler waveform in dogs.

目的 探讨动脉狭窄性病变远端的超声血流动力学变化与狭窄程度的关系。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。