In this paper, a simple and practical circuit for laser diode modulation is presented, the principle circuit and the principle of choosing component are given, at last, application in sine wave modulation in non cooperative target phase shift laser rangefinder is introduced. 本文介绍了一种简单有效的半导体激光器调制电路,给出了电路原理图,元件的选择原则,最后介绍了在非合作目标相位式激光测距系统中实现正弦调制的应用。
Through discussing the modes of sine wave modulation, toothed wave modulation and trigonal wave modulation, we can know the advantages of trigonal wave modulation in the radio proximity fuze. 对常用的正弦波调制(SWM)、锯齿波调制和三角波调制三种调制方式做了讨论,得出三角波调制在无线电近炸引信中的优势。
Pulse modulation uses a pulse sequence or a group of digital signal as the carrier wave, and sine wave modulation use high-frequency sin wave. 脉冲调制是用脉冲串或一组数字信号作为载波的调制方式,正弦波调制(SWM)则是载波为高频正弦信号的调制方式。
The switch-modulation based square wave high-voltage amplifier with large force-voltage factor was designed to improve the overload capacity of electrostatic apparatus since the overload capacity of sine wave modulation based suspension system are limited by the breakdown field intensity. 受击穿场强限制,静电式仪表采用正弦波高压放大器不能满足过载能力的要求,为此研制出了一种出力系数大的开关调制式方波高压放大器。
Study on the Strategy of Sine - Wave Modulation in Active Inverter 有源逆变和正弦调制策略的研究