modulation的例句大全

CHEC Signals and their Modulation Analysis of ND_5 Locomotive

ND5机车CHEC系统的信号及信号调制分析

Chaos-modulation-based ultra band ( UWB ) communication was addressed.

研究混沌编码技术在 超宽带无线 通信中的应用.

Similar to the case of cubic nonlinear refractive index, the loss will make the width of the power gain spectra of modulation instability become narrower and the peak gain smaller.

和只有三阶非线性的情况类似，损耗也会使不稳定增益谱的谱宽变窄，谱峰减小；

Autocorrelation Function and Power Spectrum of PCM/ FM with Random Binary Modulation

具有随机二进制调制波形的PCM/FM的自相关函数和功率谱

In this paper, we derive the equations describing recording and reconstruction processes of holograms using sphere wave illumination and compare the two holographic techniques with respect of hologram modulation, diffraction efficiency and the error of measurement.

本文导出了用球面波系统记录微粒全息图和再现微粒像的理论公式.并对两种系统全息记录的调制度、全息图衍射效率、再现像误差作出比较。

Based on the ECSL which has narrow line-width and unique modulation characteristic, a dual-wavelength output is obtained by means of fiber delay technique.

外腔半导体激光器具有窄线宽输出以及独特的阶越型电流调制特性，采用正弦调制的方式，以延时光纤作为辅助结构，得到了具有良好相干特性和稳定波长间隔的双波长激光输出。

When the external optical feedback is intermediate, the peak photon number of the ECSL behaves single period, multi-period or chaos for different modulation index.

当外部光反馈处于中度反馈时，当调制深度取不同值时，ECSL的光子数呈现单周期、多周期甚至混沌现象。

We discussed the influence of channel-length modulation effect and DIBL effect to temperature behavior of source-drain current, gave a expressions for studying the temperature characteristic of source-drain current, and deduced a ZTC point expression.

研究了沟长调制效应和漏致势垒降低效应对漏源电流温度特性的影响，给出了一个用于研究漏源电流温度特性的电流公式；

Through analyzing the characteristics of SAR echo signal, a new DECM approach ( False Image Jamming Based on Phase Modulation) is proposed.

对该方法的干扰原理进行了深入分析并进行了仿真实验。

Reduction of Conducted EMI in switching power supplies using chaotic frequency modulation scheme ( CFMS) is proposed.

探讨了混沌频率调制技术在开关变换器中抑制电磁干扰的实际效果。

It includes the frequency modulation circuit for receiving signals, the demodulation circuit for detecting signals, and the FOTS ( fibre-optic transmission system) for transmiting date.

包括用于完成信号接收的选频接收电路、用于信号检测的检波电路和用于数据传输的光纤传输系统的硬件设计。

Multicarrier modulation system based on wavelet packet transform is introduced. By analyzing the CCDF about peek value's power, its efficiency on measuring the performance of PAPR is demonstrated.

介绍了以小波包函数为载波的多载波调制系统，分析了WPM信号符号周期内峰值功率的互补累积分布函数（CCDF）及其对PAPR性能的有效描述；

To fit the needs of burst communication systems, one-bit and two-bit differential demodulation methods are studied in the thesis and realizes GMSK modulation and demodulation process using the former. A comparison is made to see the performance differences of the two methods using MATLAB.

针对突发通信系统需要，对1bit差分解调和2bit差分解调技术进行了研究，在MATLAB中用1bit差分解调技术实现了GMSK信号的调制解调，并对两种解调的性能进行了仿真对比。

Supermode depression was realized by introducing additive pulse limiting effect using self phase modulation induced spectral spreading in dispersion shifted fiber and spectral bandpass filtering simultaneously. Supermode noise can be depressed enough when the pump power was 50 mW.

利用自相位调制+频谱滤波抑制超模噪音，实验中当抽运功率在50mW以上时就足可以抑制超模噪音。

Modulation of Electroacupuncture on Brain OFQ and IL-1 β Expression of Traumatic Rats

电针对创伤大鼠脑内孤啡肽及白介素-1β基因表达的调节作用

A reduced-order model and a full-order circuit model for frequency modulation ( FM) quasi-resonant converters ( QRC) are introduced.

提出了调频准谐振变换器的降阶及全阶模型（第七章）。

Modulation spectroscopy employing QCW quantum well diode laser has the unique advantages for detecting gases with band absorption features.

准连续量子阱激光器结合调制吸收光谱技术具有对带状吸收特性气体检测的独特优势。

Basic Characteristics Analysis of Multiple Pulses PPK Coded Modulation

多脉冲PPK的编码调制基本分析

This paper details these effects upon the two basic structures of OVT& transverse and longitudinal modulation.

该文详细分析了外电场对OVT的横向调制和纵向调制两种基本结构的影响。

The proposed approach combines the function of low phase noise microwave generation and vector signal modulation, develops the application of OEO.

该方案结合了低噪声信号的产生和矢量信号的调制，拓展了OEO的应用。