摘要
现代通信技术的原理和方法正越来越多地被应用到新型遥测地震仪的设计与制造中。文章结合BOX仪器的无线传输系统组成特点 ,介绍了四相相移键控和四相正交调幅两种调制解调的基本原理 ,分析了它们在BOX遥测地震仪无线系统中的具体应用。这种线性无线技术能够在较窄的频带内实时传输多道无线遥测数据 ,较好地解决了回收道容量和数据传输的问题。
Principles and methods of modern communication technology are more and more applied to the design and manufacture of new style telemetry seismographs. Combining the radio transmission system of BOX telemetry seismic instruments,we systematically introduce the basic principles of two digital modulation demodulation,that is Quadriphase shift keying and Quadrature amplitude modulation, and analyze in detail their applications in BOX system. The linear wireless technology can transmit multi channel telemetry data in the less narrow bandwidth,which helps to solve the problem of receiving channel contents and data transmission.
出处
《石油仪器》
2003年第6期29-31,共3页
Petroleum Instruments
