调制的

In order to study the polarization property of 1-D photonic crystal,transfer matrix method was used for calculation.

为了研究两种偏振光通过1维光子晶体的偏振特性，采用传输矩阵法做了相关计算，得到介质折射率、折射率调制的变化，在光正入射和倾斜入射时对不同偏振光的禁带都有影响的结果。

In the described system, in order to transmit the narrow-band analog signals or low speed digital signals at any time and under any climatic condition, sun-blind-region ultraviolet is used as information carrier, the modulated low voltage mercury-vapor lamp is used as emission device.

所描述的系统是以日盲区紫外光作为信息载体的，用被调制的低压汞蒸汽紫外放电灯作为发射器件，以日盲型滤光片和光电倍增管或日盲型紫外光电倍增管作为接收器件，以达到在任何时间和在任何气候下完成窄频带模拟或低速数字信号的传输。

Meanwhile,the algorithms of 16QAM Softdemapping parity bit decoding and symbol mapping were derived.

本文在文献[4，5]的基础上，对采用16QAM高效调制的OFDM系统联合信道估计和Turbo译码的迭代接收进行了分析，推导出了16QAM的符号软信息与比

Therefore, the objective of this paper is to analyze the characteristics of VWDK and the realizability of UNB communications.

本文的目的是分析VWDK调制的特点及UNB通信的可行性，为后续的研究工作进行铺垫。

Simulation models are good tools for the modulation and the experiment system is beneficial to the Sparse Matrix Converter's apply.

本文建立的仿真模型为稀疏矩阵变换器调制的过程提供了方便的分析和调试工具；实验系统也为稀疏矩阵变换器的实际应用打下了一定基础。

In the method, the orbit of targets and the radar coordinates and parameters are put to calculate attitude and dynamic parameters of targets in line of sight. And then the dynamic data are generated according to the electromagnetic modulation model of the movement of targets including motion at high speed, spin, precession on electromagnetic wave.

该方法首先确定目标的轨道和雷达的布站坐标及工作模式，而后计算目标在雷达观测视线(line of sight， LOS)方向上的姿态和运动参数，最后根据空间目标高速运动、自旋、进动等在电磁波上调制的数学模型生成动态测量数据。

A phase-shifted controlling PWM DC/DC full bridge converter with softswitching is proposed and used to realize a constant current power of20A(5～48V).This full bridge converter utilizes the transformer leakageinductance(or the resonant inductance in series with transformersprimary)and the autoecious capacitance of MOSFET to achieveZVS(Zero-Voltage-Switching),as a result it can decrease the switchingwaste,increase the switching frequency,and diminish the power bulk.

本文使用一种通过移相控制进行脉宽调制的软开关全桥变换器来实现20A(5～48V)恒流源，这种全桥变换器利用变压器的漏感、原边串联谐振电感和功率管的寄生电容来实现开关管的零电压开通，降低了开关损耗，提高了开关频率，减小了电源体积。

When a sinusoidally modulated light spot was presented at their receptive field center,the on-center and off-center cells responded half a cycle (=180°) out of phase with one another at all intensities tested.

当正弦调制的光点投射在它们的感受野中心时，在不同的刺激强度下，给光中心细胞和撤光中心细胞的反应相位彼此相差半个周期(180°)。

The detector can work safely and effectively in the active mode and exploit fully the inherent performance of SPAD' s .

在分析原偏振光量子随机源工作原理的基础上，为了获得高效率的随机数信号，我们设计了快速调制的信号源，高效的单光子探测器。

Basing on the theory on Space-Vector PWM, the paper describes the mapping implemented by Neural-Network from tracked voltage vector to turn-on time of IGBT about rectifying sect of direct-driven synchronous generator excited by permanent magnets convertor system.

本文针对直驱永磁风力发电机变流系统的整流部分，利用空间矢量脉宽调制的原理，利用神经网络来实现跟踪的电压矢量到整流器三相桥臂开关时间的映射。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。