direct frequency modulation

By analyzing the direct frequency modulation and optical feedback effect of laser diode, a theoretical model for measuring small vibration displacement and velocity is discussed.

分析了在直接频率调制下 ,激光二极管中的光反馈效应 ,探讨了振动微小位移和速度的理论模型。

This results presented in this paper is useful for the realization of the DQPSK transmitter system.

文中提出的结论对直接射频调制发射系统的设计有一定指导意义。

Design of 60GHz Direct Conversion Modulators;

60GHz波段直接变频调制器的研制

Directly Grown Ca_2Si Films on Si(100) Substrate at Various Radio-Frequency Sputtering Power

不同射频溅射功率下直接制备Ca_2Si薄膜(英文)

The Fourth-Harmonic Mixer Used in Ka-Band Director Modulation

分谐波混频技术在Ka频段直接调制器中的应用

The Research of Direct Modulation Transmitting Unit in the Laser Communication System;

激光通信系统直接调制发射单元研究

circuit description、installation、adjustment and maintenance of RF contactor control board

射频接触器控制板电路说明、安装、调整和维护

Study in Variable-frequency Adjustable-speed System of Mine Electric Locomotive Based on Direct Torque Control;

矿用电机车直接转矩控制变频调速系统的研究

Research on the Application of Direct Torque Control in Multilevel Variable Speed Drives;

多电平变频调速系统直接转矩控制研究

The Research on Direct Torque Control Applied to Shearer Frequency Speed Regulation System;

基于直接转矩控制的采煤机变频调速系统研究

The Research of Variable Frequency Speed Regulate Technology Based on Three Level Direct Torque Control

三电平直接转矩控制变频调整技术的研究

Design of a Wideband VCO for GSM Direct Modulation Transmitter

应用于GSM直接调制发射机的宽带压控振荡器

Uncooled DFB Laser-based Directly Modulated 10Gb/s Transmitter

基于非致冷直接调制DFB激光器的10Gb/s光发射器

Simulative Performance Analysis of Radio over Fiber Systems in Broadband Access Networks

接入网中复杂调制射频信号光传输系统的性能分析

System Research for Asynchronous Motor Speeding Adjustment Feeding by Varible Frequency Converter Base on the Direct Torque Control;

基于直接转矩控制的异步电动机变频调速系统的研究

Design of Highrise Buildings Elevator Control System Based on DTC Frequency Converter Technology

基于直接转矩变频调速技术的智能高层电梯控制系统设计

Study on the Small Signal Modulation Characteristic of Internal-Contact Oxide-Confined Vertical-Cavity Surface-Emitting Lasers

内腔接触氧化限制型垂直腔面发射激光器小信号调制特性研究

Software Radio Receivers Based on RF Passband Sampling;

射频直接带通采样软件无线电接收机的研究

modulator transmitter receiver

调制器—发射机—接收机