井下无线短传中脉宽调制信号的应用与实现

摘要

In underhole wireless communication technology,low power is one of the most important aspects to consider.In designing the transmitting circuit for under-hole communication,pulse width modulated（PWM） signals are used to drive H bridge power enlargement module,which saves a lot of powers and meets the requirement for low power consumption.This paper mainly describes the application and realization of PWM signals in transmitting circuit.In the end,the test results are briefly explained.%在井下短距离无线通信技术中,低功耗是设计的重要考虑因素。在无线短传发射电路中,采用脉宽时间调制信号来驱动H桥型功放模块具有较低的发射功耗,符合低功耗的设计要求。从低功耗的角度,重点介绍脉宽调制信号在发射电路中的应用以及软件实现方法。最后简要概述井下无线短处的数据传输实验情况。