调制的

Based on the system's demand of low cost, small size and high respondence, the article starts with the modulate chopper techniques used in pyroelectric detecting system.

基于系统对红外传感器的小型化、低功耗设计要求，本文从调制技术的分析入手，比较了几种调制方式的优缺点。

High-frequency continuous modulation on the high-power semiconductor laser is required in our ladar system. The theory and driving methods of the semiconductor laser is summarized in this article. Two kinds of driving circuit including linear power amplifier and resonance power amplifier are designed for continuous and quasi continuous modulated laser.

针对研制的无扫描激光雷达系统，需要对大功率半导体激光器进行高频连续调制，本文总结了半导体激光器的原理和驱动方法，并针对连续和准连续调制大功率激光器的特点分别设计了两套驱动电路，包括线性功率放大驱动电路和谐振功率放大驱动电路。

Finally, we simulate the relationship of the residuary intensity modulation coefficient and the scale factor stability of fiber-optic gyro by using the Matlab simulation tool.

最后，对所得出的残余强度调制系数与光纤陀螺标度因数稳定性的关系进行了Matlab 仿真，通过仿真结果，更进一步说明残余强度调制对数字闭环光纤陀螺标度因数稳定性的影响。

Finally, we simulate the relationship of the residuary intensity modulation coefficient and the scale factor stability of fiber-optic gyro by using the Matlab simulation tool. The simulation results further explain the effect of residuary intensity modulation on digital closed-loop fiber-optic gyro scale factor stability.

最后，对所得出的残余强度调制系数与光纤陀螺标度因数稳定性的关系进行了Matlab仿真，通过仿真结果，更进一步说明残余强度调制对数字闭环光纤陀螺标度因数稳定性的影响。

Space vector modulation is an effective measure to eliminate the electrical harmonics in the power electronic system and, consequently, is possible to be utilized to reduce the torque ripple in an inverter-fed motor.

空间矢量调制是一种常用的消除电力谐波的调制技术，更可用于电机控制中转矩脉动的削减。

The process and product of wood vinegar with different materials and temperatures were supervised to know the characters of preparation process of wood vinegar with wood residues and its composition .

为了解以木材剩余物为原料的木酢液制备特性和木酢液的成分组成，采用电控炭化反应釜进行调制试验，分析了不同材料和调制温度下的生成物组成。

How to design a stable high order modulator and increase the input range for interpolative structure and how to eliminate the effect of the analog imperfection to cascaded structure are the topics of this thesis.

而对于级联结构的Sigma-delta调制器，则主要要考虑的是如何消除模拟电路参数对调制器性能的影响。

Analyze the gain spectrum of modulation instability under specific nonlinear responds. We take logarithmically nonlinear medium as an example to discuss MI gain spectrum of coherent and incoherent beams both.

一、我们在微扰近似下，分析了介质的非线性响应形式对调制非稳增益的影响，以对数型非线性介质为例分别讨论了相干光束和非相干光束的调制非稳性。

In the second part, we apply CMFBs to multicarrier modulation. The design and implementation of orthogonally multiplexed QAM systems are investigated in the frame of multirate signal processing.

第二部分研究余弦调制正交滤波器组在多载波调制中的应用，在多速率信号处理的理论框架下研究离散时间正交多路QAM系统的设计和实现方法。

A compensatory voltage vector based overmodulation method for four-switch SVPWM was presented for improving the utilization ratio of the DC voltage.

指出四开关SVPWM最大线性调制比只有六开关时的一半，为提高直流电源电压的利用率，提出基于补偿电压矢量的四开关逆变器SVPWM过调制方法。

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。