油田无线传输扩频通信系统设计方案

The Scheme of Radio Spread Spectrum Communication System in Oilfield.

在石油勘探开发过程中 ,将地层测试和生产测试中所获得的井下和地面参数数据用无线传输技术及时准确地反馈给决策部门是最快捷的办法。油田无线传输扩频通信系统设计方案 ,以微波作为传输媒体 ,采用先进的直序扩展频谱 (DSSS)方式或跳频 (FH)方式发送信号 ,与数据采集系统配合使用 ,能实现油田测试参数检测的实时、准确自动化传输。利用扩频技术设计的这种方案具有抗噪能力强、抗多径干扰 ,在衰落信道中传输仍能保持极低误码率、宽带发送、传输速率高、保密性能好等优点 。

In the process of petroleum exploration and development, it is a rapid and simple method for policy making body to accurate and rapid transmit the parameters obtained from formation testing and production logging by radio communication technology. The scheme of radio spread spectrum communication system in oilfield adopts advanced direct sequence spread spectrum(DSSS) or frequency hopper(FH) method to transmit the signal by microwave, it with the data acquisition system can realize the oilfild testing parameters real time, accurate and automatic transmission. The scheme has following advantage: strong anti interference ability, low bit error probability, wide band and high speed transmission, good function of macintain secrecy and so on, it also can realize many stations communication together at the same time.