modulation frequency的例句大全

According to optical transfer function, degree of modulation and apperceive degree of space frequency vision vs object image, TIFF grayscale scenograph is made.

根据光学传递函数、调制度和空间频率视觉及对物象的感知程度，制作TIFF格式透视灰度图。

According to the physiotherapy principle, this paper develops a computerized bone injury therapeutic instrument with electromagnetic physiotherapeutic technology and intermediate frequency modulation technology.

基于理疗学原理，本文较系统地阐述了使用电磁理疗技术以及电流中频调制技术实现电脑骨创伤治疗仪的方法。

This paper first introduces the basic structure and line code of VDSL, and then analyses two kinds of main modulation methods for VDSL, including time division du plex ( TDD) and frequency divi-sion duplex ( FDD).

首先介绍了超高速数字用户环路（VDSL）的基本构造和线路编码，然后分析了VDSL的主要两种调制方法，即时分复用（TDD）方式和频分复用（FDD）方式。

Application of frequency modulation technique in compressed air station

变频技术在压风机站中的应用

Factors affecting the frequency deviation in REACTANCE-TUBE frequency modulation circuits

电抗管调频电路中影响频偏之因素

Hybrid Radar Signal Composed Modulation of Linear Frequency and Barker Phase Coded Modulation

线性调频和巴克码组合调制雷达信号

A kind of signal processing circuil for the drop volume measurement through the capacitive drop sensor, based on frequency modulation, is introduced.

文中详细介绍利用调频原理通过电容液滴传感器对液滴体积进行测量的方法。

Coherent Detection of Tamed Frequency Modulation

软调频（TFM）的相干检测

And the non-inverted conversion is obtained by large filter detuning, which is used to extract the frequency chirps, and in this condition the cross phase modulation ( XPM) is dominant.

当滤波器失谐量较大时，得到同相波长转换结果，此时交叉相位调制（XPM）占主导作用，而滤波器起到提取啁啾信息的作用。

Because BOC modulation has partite spectrum characteristic, so that it can ensure to share with existing frequency bands navigation signals. And it has higher code tracking accuracy and better ability of distinguish between multipaths.

BOC信号具有明显的分裂频谱特性，能够保证其与现有频段内的导航信号相兼容，并且拥有更高的码跟踪精度和更好的多径分辨能力。

Logarithmic Transformation to Joint Power Spectrum can enhance the intensity of high frequency component, improve the modulation degree, weigh down the zero-order diffraction, and increase the recognition efficiency of joint transform correlation system.

为增强联合功率谱的高频成分，改善其调制程度，可对功率谱进行对数变换，从而有效保留更多的高频成份，压低零级衍射光斑，提高联合变换相关器的识别能力。

Space time coded modulation has been shown to efficiently use transmits diversity in Raleigh fading channel. Then, the investigation indicates that decreasing the amounts of subbands, and utilizing the diversity characteristic adequately in frequency domain of OFDM is an effective approach to reduce the performance degradation.

文中接着通过研究表明，在子带自适应编码调制中，减少选取子带的个数，充分利用OFDM频域上的分集特性是一种可以降低信道时变带来性能恶化的有效途径。

The characteristic of frequency modulation has slowly start-up and finite area of modulate frequency;

变频方式具有启动缓慢，频率的可调区非常有限，须在谐振点附近；

Study on frequency modulation starting and its features of Huizhou Natural Gas Turbine Combined-Cycle Power Plant

惠州天然气发电厂变频启动调速过程及特点

Comparison of wakefield and relativistic effects on the self-phase modulation and frequency shift of intense laser pulse propagation

尾波场与相对论效应对激光脉冲自相位调制及频移影响的比较研究

This paper presents the analysis and design of an electronic ballast with very high frequency and dimming by frequency modulation.

介绍了一种双频控制的调光型超高频电子镇流器的分析与设计方法。

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。

This paper describes a pulse compressor implementation with DSP for small Time Bandwidth ( TB) product Linear Frequency Modulation ( LFM) waveform.

用DSP实现小TB积线性调频数字脉压，线性调频信号用数字方法产生。

The Computerized Frequency Modulation Transmitter is a kind of teaching assistant equipment that can solve this problem effectively.

可编程电脑程控调频发射机是一种能解决这个问题的教学辅助设备。

For a resonator without a dispersive element broadband spectrum is smooth and continuous, while frequency dependent feedback causes strong modulation on output laser spectrum.

比较了谐振腔内有无色散元件时的输出频谱，理论证明了谐振腔内无任何色散元件时的宽带输出频谱是光滑连续的，而频率依赖的反馈引起了输出频谱很强的精细结构。