frequency modulation是什么意思_frequency modulation怎么读_frequency modulation翻译_frequency modulation的相关短语_frequencymodulation的翻译_frequency modulation的音标

1、

As the control modes of DDS special chips are changeless, users are difficult to get frequency modulation wave what they need.

DDS专用芯片的控制方式固定不变，用户难以获得所需要的调频波；

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2、

According to the classical equation of motion for the electron, the dielectric susceptibility of the medium is not affected by frequency modulation.

从经典电子运动方程着手得到介质的极化率；

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3、

Simulation results show that it can efficiently test frequency-modulation linearity.

仿真结果表明,该方法能有效地检测 LFMCW 雷达的调制线性度.

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4、

Frequency modulation does not allow static to creep in.

频率调制不允许静电干扰混入.

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5、

By comparing, we choose of Frequency modulation Continuous Wave radar as vehicle radar detects obstacles in front of the vehicle.

通过研究比较，在激光、超声波、红外线和毫米波中选择了调频毫米波雷达作为车载雷达探测前方的障碍物。

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6、

That is mixing the baseband signal ( linear frequency modulation signal and sinusoid signal) with two orthogonal local oscillated signal generated using direct digital synthetic technology to move the baseband signal to intermediate frequency band.

同样运用直接数字合成技术产生基带信号&线性调频信号和正弦信号，与本地载波混频后，将其频谱搬移到中频，完成数字上变频。

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7、

A Special Algorithm for Enhancement of Cosine Frequency Modulation Signals

一种余弦调频信号增强新算法研究

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8、

According to the characteristic of Through-the-Wall Surveillance ( TWS), a novel TWS detector scheme is proposed which is based on sinusoidal frequency modulation and spread spectrum technologies. The experimental system is established, and some experiments are accomplished.

该文根据穿墙生命探测（TWS）的特点，提出了基于正弦调制、扩频连续波体制的TWS探测器设计方案，研制完成了该探测器的实验系统，并进行了实验验证。

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9、

A High-Efficiency Pulse Frequency Modulation Control Scheme

一种高效率的PFM控制策略

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10、

Analysis of Partial Correlation Digital Pulse Compression of Linear Frequency Modulation Signal

LFM信号的部分相关数字脉压分析

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11、

In recent years, Frequency Modulation Continuous Wave Radar ( FMCWR) is widely used in many fields for its eminent characteristics, such as high resolution, large dynamic range, low radiant pollution to environment and good performance in anti-jamming, especially for vessel traffic system.

调频连续波雷达（FMCWR）具有分辨率高、信号动态范围大、对周围电磁环境干扰小、抗干扰能力强等特点，得到广泛应用，特别适用于海事交通管制系统（VTS）。

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12、

Miniature passive hydrogen maser is developed at Shanghai Observatory cavity design and square wave frequency modulation.

介绍了上海天文台被动型小氢钟的设计和研制,给出了初步的测试结果.

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13、

Range Estimation of Linear Frequency Modulation Continuous Wave Radar

线性调频连续波雷达的距离估算

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14、

The detection technique of phase generated carrier ( PGC ) demodulation method with laser frequency modulation is introduced.

概述了干涉型光纤水听器直接调制光源的相位生成载波 ( PGC ) 解调技术.

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15、

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。

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16、

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。

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17、

The Design of High Stability Keying Frequency Modulation Oscillator

高稳定度键控调频信号发生器设计

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18、

Main motor frequency modulation control.

主电动机调频控制。

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19、

Full Digitalized Biploar Double Modulation Wave Control Strategy for Voltage Mode High-Frequency Link Inverter

电压型高频链逆变器的全数字化双极性双调制波控制策略

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20、

Linear frequency modulation ( LFM ) interferences may be a kind of preferred wideband interferences in spread-spectrum.

线性调频 ( LFM ) 是扩频系统中常见的一种宽带干扰样式.

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21、

Therefore , the tuner is essential to the frequency modulation radio.

所以调频收音机中的频率调谐器是至关重要的.

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22、

Alarm function: can any one song or MP 3 FM frequency modulation for the alarm clock.

闹钟功能: 可以把MP3任何一首歌或FM频率调为闹钟.

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23、

Research on Dynamic and Static Characteristic of Frequency Modulation System for Constant Frequency AC Power Supply

恒频交流电源频率调节系统动静态特性研究

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24、

A method of representing data in magnetizable surface storage; for example, " modified frequency modulation ".

在磁表面存储技术中一种表示数据的方法, 例如改进型调频制.

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25、

Abstract: The emissive frequency of the general frequency modulation broadcast transmitter is fixed.

一般的调频广播发射机，发射频率是固定的。

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26、

FM launcher can change navigating audio signal into frequency modulation signal, and playing.

FM发射器可将导航音频信号转换为调频信号播放.

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27、

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

利用混沌频率调制技术从噪声产生源头上降低了开关电源传导电磁干扰.

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28、

In modern Sonar equipment the several signal operation modes are usually required, for instance, the keying single frequency signal operation mode, the keying frequency modulation signal operation mode and etc.

在现代声纳中常要求在一部声纳中同时具有几种信号工作方式的功能，例如单频脉冲信号工作方式、键控式调频信号工作方式等等。

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29、

When the intensity modulation index increases, the optimal frequency modulation index increases.

随着强度调制系数增大, 频率调制系数的最优值也增大.

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30、

Modulated pulsed laser is utilized to produce specific frequency light current imaging but not direct current imaging to enhance the SNR. The special modulation circuit is designed in this thesis. 6.

采用经调制的脉冲激光束产生特定频率的光电流成像而非直流成像技术，进一步提高了图像信噪比，并设计了专用的调制电路。

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