【摘要】 遥测地震数据采集系统近年来发展迅速。然而有线地震数据采集系统和甚高频 (VHF)无线地震数据采集系统依然存在各种问题 ,难以适应复杂地区作业。目前 ,应用扩频技术的无线局域网以其可移动性、高可靠性和低成本等优点普遍受到广大用户青睐。遥测地震数据采集系统也引入了这一高新技术。全无线网的遥测地震数据采集系统将是适应复杂地区万道地震勘探采集的一种良好仪器。文章介绍VIBTECH公司最新开发的“无限遥测系统”及其“蜂窝地震”新概念。在该系统中 ,数据传输使用TCP/IP 80 2 .11WLAN技术 ,具有高数据传输速率、高可靠性和低误码率 ;系统轻便可靠、功能强大 ,可以方便地应用于复杂地区的地震勘探采集。更多还原

【Abstract】 Telemetry seismic data acquisition systems have been developed rapidly in recent years. But the cable system and the VHF-based system still have a variety of their own problems to be used in geologically difficult areas. The spread spectrum technology covers the art of secure digital communication that is now being exploited for commercial and industrial purposes. A wide variety of industries have discovered the benefits a WLAN using spread spectrum technology can bring to their tasks. Wireless LAN clients enjoy great mobility and affordability. New developments of high technology in this new generation wireless data transmission are also introduced continuously to the telemetry seismic data acquisition system. Full wireless LAN seismic telemetry system should be suitable for seismic ten thousands channel exploration applications in the difficult area. This paper introduces the infinite telemetry system developed by Vibration Technology Ltd and the new concept ″cellular seismic″. In this system the data transmission utilizes TCP/IP 802.11 WLAN, giving high data rate, high reliability and low error. It is the light and powerful system that suitable for seismic exploration applications in the difficult area.更多还原