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调制器
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  modulator
    An Error Analysis for Measuring Carrier Suppression Factors of Microwave 0-π Modulator Using ModulatedSubcarrier Technique
    副载频调制法测量微波0-π调制器载波抑制度的测量误差分析
短句来源
    POSSIBILITY OF USING THE PIN MODULATOR FOR LINEAR PULSE MODULATION
    PIN调制器用于线性脉冲调制的可能性
短句来源
    Performance Study of Phase-Locked Loop MSK Modulator
    锁相环MSK调制器的性能研究
短句来源
    Analysis of Ring Amplitude Modulator for Television Signal
    电视图象环形振幅调制器分析
短句来源
    New TV Picture Modulator
    新型电视图像调制器
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  “调制器”译为未确定词的双语例句
    Analysis and Calculation of LiNbO 3 Optical Waveguide in Asymmetrical Microshield Line
    用非对称微屏蔽线实现LiNbO_3光波导调制器
短句来源
    Principle and application of PSM
    脉阶调制器原理及应用
短句来源
    Scheme of hardware implementation of vestigial sideband modulation in HDTV
    HDTV中残留边带调制器的硬件实现方案
短句来源
    To Realize π/4 DQPSK Modulation with FPGA
    采用FPGA实现π/4DQPSK调制器
短句来源
    An EAM-based Optical Add-drop Multiplexer in 4×10Gbit/s OTDM Systems
    4×10Gbit/s光时分复用(OTDM)系统中基于电吸收调制器(EAM)的光分插复用器
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  modulator
Design of a piezoelectric transducer cylindrical phase modulator for simulating acoustic emission signals
      
To conveniently carry out the pipeline leak experiment in a laboratory, leak acoustic signals are simulated by using the converse piezoelectric effect of a piezoelectric transducer (PZT) cylindrical phase modulator.
      
On the basis of the piezoelectric equations and electromechanical equivalence principle, the transfer function of a PZT cylindrical phase modulator is delivered.
      
A PZT cylindrical phase modulator is designed, and the numerical simulation is conducted.
      
Results prove that the PZT cylindrical phase modulator can effectively simulate leak acoustic emission signals when the frequency is lower than 25 KHz.
      
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The dynamic range of a digital companded delta codec for transmitting voice signals in a lower bit rate is confined within the limit of linearity between the control level of the pulse amplitude modulator and the signal level. This paper describes a coder using a nonlinear network in which the relationship between the control level of the pulse amplitude modulator and the signal level is approximately linear. It is proved both in theoretical analysis and experiment that the dynamic range of the digital companded...

The dynamic range of a digital companded delta codec for transmitting voice signals in a lower bit rate is confined within the limit of linearity between the control level of the pulse amplitude modulator and the signal level. This paper describes a coder using a nonlinear network in which the relationship between the control level of the pulse amplitude modulator and the signal level is approximately linear. It is proved both in theoretical analysis and experiment that the dynamic range of the digital companded delta codec is improved by using such a coder.

在电话信号低数码率传输时,若使用数字式压伸增量调制器,由于脉冲调幅器控制 电平和信号电平的非线性特性,调制器的动态范围受到一定限制。本文介绍的调制器是 利用非线性网络,使控制电平和信号电平接近线性,因而改善了数字式压伸增量调制器 的动态范围。分析和实验皆证明动态范围的改善是明显的。

A teaching television system with modulated intermediate freguency (i. f.)transmission for both open or close circuit operations is introduced in this paper. Specially, the video and sound i. f. modulators for this type of transmission arc discussed.

提出采用中频调制传输方式的开、闭路兼用的教学电视系统,并着重介绍实现该传输方式的影声中频调制器

The error sources of the modulated subcarrier method for measuring psup is specified. It is also shown that in order to have uniformity for the measured psup, the filter and the decoupling isolators with available parameter must be selected.

本文着重分析微波0—π调制器载波抑制度P_(?)的副载频调制测量法中的误差来源。并且指出:为使P_(su(?))的测量值有一致性,必须选用具有合理参数的滤波器和去耦隔离器。

 
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