amplitude modulation

Change the inverter output voltage or output current are two kinds of different ways, namely, PAM pulse amplitude modulation control and PWM control pulse width modulation.

改变变频器的输出电压或输出电流有二种不同的方法，即PAM脉冲幅值调制控制和PWM脉冲宽度调制控。

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Two-dimensional channel estimation based on sliding window for digital amplitude modulation broadcasting system

数字调幅广播系统中基于滑动窗口的二维信道估计

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Study on 8 kinds of artifacts in ultrasonography by amplitude modulation

用A型超声示波法研究8种2D超声伪像的形成

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Second, the paper analyzes the single-pulse modulation which includes pulse amplitude modulation, on-off keying modulation, pulse position modulation and two-phase modulation.

其次分析了单脉冲调制中的脉冲幅度调制、开关键控调制、脉冲位置调制和二相调制。

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Analog Switch: Its Application in Amplitude Modulation and Modulation

模拟开关用于幅度调制与解调

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This paper analyzes the principle of time domain measurement function of high per-formance spectrum analyzer and its use in Amplitude modulation ( AM), Frequency modulation ( FM) and pulse modulation test.

本文分析了高性能频谱分析仪时域测量功能的原理，并给出其时域测量功能在调幅、调频、脉冲调制测试中的应用。

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The principle of the envelop demodulating technique for time varying amplitude modulation signals was described, and the demodulating performance of the cyclic autocorrelation function was discussed.

介绍包络解调技术在幅值调制信号分析中的工作原理，同时讨论了循环自相关函数的解调性能。

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It is found from experimental investigations on the distortion of ferromagnetic resonance curve and the broadening fo the resonance linewidth due to amplitude modulation that the relationship between apparent linewidth and true linewidth is in agreement with Wahlquist equation [ 1], when small modulation condition is satisfied.

本文通过调制幅度引起铁磁共振曲线畸变和使共振线宽增加的实验研究，发现满足小调制条件时，视在线宽和真实线宽的关系符合文献[1]所提出的方程式。

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The passive interference in receiving station of amplitude modulation ( AM) broadcasting from UHVAC transmission lines is mainly caused by towers.

特高压输电线路对调幅广播台站的无源干扰主要是由垂直杆塔引起的。

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I retrofitted our ommunications to an amplitude modulation.

我把我们通讯改为调幅模式.

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A method to identify the modulation levels of M-ary Quadrature Amplitude Modulation ( M-QAM) and M-ary Amplitude shift keying ( M-ASK) was developed to rapidly and automatically identify the modulation levels of digitally modulated signals at low signal-to-noise ratios ( SNR).

为了快速自动识别低信噪比下的数字幅度调制进制，提出了一种识别M进制正交幅度调制（M-QAM）和M进制幅度键控（M-ASK）的调制进制的方法。

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A kind of distributed feedback ( DFB) diode laser module was developed for the use of Amplitude Modulation Cable Television ( AMCATV) transmitter.

开发了一种用于光纤公用天线电视（CATV）的分布反馈激光二极管组件。

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EYS was the key basis of spinning technology determination direction and amplitude modulation.

原丝的拉伸率是确定纺丝工艺调整方向和幅度的重要依据.

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Single sideband amplitude modulation is the major model of the military software radio.

单边带调制是军用软件无线电中的主要调制方式之一.

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The Study on Measuring the Amplitude Modulation Signal with the DPSD Algorithm

应用DPSD算法测量调幅信号的研究

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Effect of amplitude modulation and phase perturbation on the optimizing parameters of third harmonic generation

振幅调制和位相扰动对三倍频参数优化的影响

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Research on Medium Wave Amplitude Modulation Stereo Broadcasting Systems in China

中波调幅立体声广播制式研究

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In screening technology asas color image in differenc dot have amplitude modulation and FM screening.

在增网技艺洋,表示不黑白图像条理的网点有调幅和调频增网.

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Characteristics of Soliton System with Long Space Amplitude Modulation Control

大间距幅度调制控制孤子系统的特性分析

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A new lithology identification method based on axial amplitude modulation signal of drill string is proposed.

提出了一种利用钻柱轴向振动调幅信号实现岩性识别的方法.

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Perception threshold of sound amplitude modulation

声音的调幅感受阈

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Both Quadrature Amplitude Modulation ( QAM) and Low Density Parity Check Code ( LDPC) are widely used in such fields as wireless communication, wired television transmission and satellite communication.

正交幅度调制（QAM）和低密度奇偶校验码（LDPC）技术应用于很广泛的领域，如无线通信、有线电视传输、卫星通信等领域。

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Introduces the working principle of a non-atmospheric window millimeter wave FMCW short range radar, analyzes the system primary parameters f_0 、 T_M 、Δ F_M and discusses the effect on parameters choice of Doppler result and parasitic amplitude modulation.

介绍了非大气窗口毫米波FMCW（调频连续波）近程雷达的工作原理，对系统的主要参数f0、TM、ΔFM进行了分析，并讨论了多普勒效应和寄生调幅对参数选择的影响。

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System performances using the two different pulse amplitude modulation schemes ( BPSK and OOK) is compared.

比较了BPSK和OOK两种脉冲幅度调制方式下的系统性能；

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Amplitude modulation ( AM ): The form of modulation.

调幅: 调制的一种形式.

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This system of modifying the carrier waves is called " Amplitude Modulation, " or " AM ".

这个改变载波的系统称为 “ 振幅调制 ” 或缩写为 “ AM ”.

词典精选例句

The quality of the output voltage in step level inverters could be improved both by the scheme of amplitude modulation and by the scheme of phase modulation.

通过调节各阶梯电平的幅度或各阶梯电平的相角都可以达到改善逆变电源输出电压质量的目的。

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Influence of Amplified Spontaneous Emission Noise on a Soliton Transmission System with Amplitude Modulation Control

同步幅度调制控制孤子系统中自发辐射噪声的影响

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TACAN beacon transmits pulse amplitude modulation signals in all direction, including bearing and distance information relative to the beacon.

塔康信标台全向发射脉冲幅度调制信号，隐含空中目标相对于信标台的方位和距离信息。

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Research on intermediate frequency electrotherapy apparatus using false random signal amplitude modulation

伪随机信号调幅中频电子治疗仪的研究

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