under modulation的例句大全

The output voltage waveforms of matrix converter which is based on the space vector modulation are analysed under the unbalanced input voltage. A time variant modulation ratio method is proposed.

在非对称输入电压情况下，对基于双空间矢量调制的矩阵变换器的输出电压波形进行了分析，提出了利用时变调制比改善输出电压波形的方法。

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The reference vector corresponding to basic vector and its role time under linear modulation mode is decided. As well as redundant switches are optimization selected by extreme value method to reduce the switching frequency.

确定了线性调制模式下参考矢量所对应的基本矢量及其作用时间；并提出了极值法对冗余开关状态进行优化选择以降低开关频率。

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On the purpose of improving efficiency of continuously variable transmission with reflux power, efficiency of previous system under low gear and reverse gear have been analyzed to optimize its structure based on analysis of speed modulation characteristic and transmission efficiency of transmission system.

在回流式无级自动变速传动系统调速特性和传动效率分析的基础上，以提高效率为出发点，通过对原有系统低速档、倒档工况下的效率分析，并对原有结构进行了优化。

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Research on Lateral Phase Uniformity of Semiconductor Laser Output under Sine Current Modulation

关于半导体激光器侧向调制相位均匀性的研究

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Under a certain deliver distance and the light power, the different sub-carries number to exist a best optical modulation index, making the system's carrier-to-noise ratio biggest.

一定的传输距离和发射光功率情况下，不同的子载波数存在一个最佳的光调制指数，使得系统载噪比最大；

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Green-mode which provides off-time modulation to linearly decrease the working frequency under light-load conditions and power limiting which will turn off the transistor when peak current of inductor reaches the threshold current.

同时该电路集成了能在轻负载情况下自动降低频率的绿色模式以及能在电感峰值电流过高时关断调整管的功率限制模块，降低了系统的功耗。

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Research on Open Circuit Voltage of Solar Cell Under the Modulation of Lens Focus Position

透镜焦点位置调制太阳电池开路电压的研究

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Under high resolution radar, it is more suitable for the generalized gamma probability density function ( G Γ-pdf) that characterizes the speckle component and modulation component in the clutter. The expression of generalized compound ( GC) pdf is derived based on this.

高分辨力雷达体制下，杂波散斑分量与调制分量更适合用广义Gamma分布模型描述，在此基础上本文推导了广义复合模型表达式；

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Through the integration modulation of the novel MC, generator excitation current and system output power can be under control at the same time.

为改善发电系统输出电能质量，本文对新型矩阵变换器进行了一体化调制，实现了发电机励磁与发电系统功率变换器的同时控制，并对采用的组合式闭环控制方式进行了详细分析。

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Simulation results show that: under the condition that the occupied bandwidth and the information rate are equal, the anti-noise performance of the communication system based on chaos M-ary modulation and demodulation method can achieve the theoretical limit of the ideal incoherent OOK receiver.

结果显示：在带宽和码元速率相同的情况下，混沌振子多进制调制解调通信系统的误码率性能能够达到传统非相干OOK接收机的理论极限。

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On this basis, the scheme of digital double closed-loop modulation demodulation with four-state-bias was brought forward, and the process of modulation demodulation under some different conditions were studied, and gave the modulate-demodulate equations.

在此基础上提出了基于四状态偏置的数字双闭环调制解调方案，分别研究了几种不同条件下的调制解调过程，并给出了调制解调方程。

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By optimizing the mapping scheme between source and channel modulation symbols in a joint source-channel coding/ modulation system, under the distortion measurement of end-to-end mean square error, the proposed scheme has better performance than that of the traditional tandem coding system.

在信源-信道联合编码/调制中，通过优化信源和信道调制符号间的映射关系，在端到端均方误差的失真度量标准下，可以得到比传统级联编码系统更好的性能。

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in the experiments, in order to obtain the best modulation parameter, several multi-mode ld ( mld) modulation methods and optical fiber interference characteristics under corresponding conditions are investigated.

在实验中，选用不同的电流波形调制，研究了相应条件下的光纤干涉特性，并找到了最佳的调制参数。

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numeric analysis on the output of fuze self heterodyne oscillator under a noise modulation interference environment

杂波调制干扰下引信自差机输出信号的数值分析

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under the condition of modulation, the competitive advantage of lics is reflected in the monopoly and control of itt.

模块化条件下，产业集群竞争优势更主要体现在产业技术轨道的主导权与控制权方面。

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there are dc off-sets in the compensated source current of the apf with one-cycle control under bipolar modulation.

采用双极调制方式单周控制APF补偿后的电源电流中存在直流分量。

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the results can be used in modeling of conductivity modulation power devices under localized lifetime control.

其结果可用于局域寿命控制下电导调制器件的建模分析。

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This dissertation focuses on the modulation and equalization under acoustic channel.

本文重点探讨了水声信道下的调制技术和均衡技术.

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This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation;

本文对双极性调制的无刷直流电动机仿真，分析了转速和调制频率对转矩影响；

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Live cells were observed under inverted microscope equipped with Hoffman modulation contrast optics, and classified according to their morphology. Chromogenic in situ hybridization ( CISH) using chromosome 17 centromere probe and anti-c-kit immunocytochemistry staining were applied to classified cell smears.

在Hoffman光学镜头下根据细胞形态进行活细胞分类，选取各类细胞分别涂片，行17号染色体着丝粒探针化学显色原位杂交和c-kit抗原表达免疫细胞化学染色。

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