modulation frequency的例句大全

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。

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

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；

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。

Range Estimation of Linear Frequency Modulation Continuous Wave Radar

线性调频连续波雷达的距离估算

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）。

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。

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。

The high frequency switch technology of large power is developed successfully by the perfect control of PWM ( Pulse Width Modulation) and ZCC ( Zero Current Control), ZVC ( Zero Voltage Control) in the unit.

通过PWM（脉宽调制）和ZCC（零电流控制）、ZVC（零电压控制）的完整控制，成功开发应用了大功率高频开关技术。

The paper presents a novel ultra-audio frequency ( UAF) induction welding power based on ZCS-PWM ( Zero Current Switching-Pulse Width Modulation) technology.

介绍一种基于ZCS-PWM（零电流开关-脉宽调制）技术的新型超音频感应焊接电源。

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）。

A novel high sensitive laser spectroscopy technique,-frequency phase modulation-cavity enhanced modulation transfer spectroscopy, is presented.

提出了一种新的高灵敏激光光谱技术激光 双 频相位调制环形腔增强调制转移光谱技术.

The article mainly describes the development trend of broadcasting technologies in the coming 10 years, with focusing introduction to the Digital Audio Broadcasting ( DAB), Web broadcasting, synchronization frequency modulation broadcasting theories and the existing prospects.

着重论述广播技术未来十年的发展趋势，比较全面地介绍了数字音频广播（DAB）、网络广播、同步调频广播的工作原理及存在的合理性。

The frequency of modulation was 40 cycles per second.

调制频率是每秒钟40个周期.

Double space vector modulation and overmodulation of matrix converter were proposed in this paper to ensure the matrix converter switching frequency to be fixed and fast dynam-ic torque response.

结合矩阵变换器双空间矢量调制方法，并将矩阵变换器过调制方法用于感应电机直接转矩控制中，达到矩阵变换器开关频率恒定和电机快速转矩响应的目的。

Loop frequency locking technique in phase modulation spectroscope technique R-FOG system has been researched.

对基于调相谱检测技术R-FOG系统中的环路频率锁定技术进行了研究。

The paper introduces the yellow project pumping station frequency conversion speeder, and analyses the principle of the frequency modulation and the supplementary equipment performance.

介绍了引黄工程泵站变频调速装置，对其变频调速原理及其配套设备的性能进行了详细分析。

Theoretical study of frequency chirping of wavelength-converted signal by cross-phase modulation using linear optical amplifier

基于线性光放大器的交叉相位调制波长转换啁啾特性研究

the application of speed modulation technology of variable voltage variable frequency on old elevator renovation.

变频变压调速技术在旧电梯改造上的应用.

In the area of aerospace telemetry, Pulse Code Modulation/ Frequency Modulation ( PCM/ FM) system is one of the main plans in strategic weapons and rockets because of its high noise resistance, high flexibility.

在航天遥测领域中，PCM/FM传输体制抗噪声性能强、灵活性高，是国内外战略武器和火箭等的主要遥测手段。