地震数据无线传输技术的新进展

New progress about the telecommunications technology applied in seismic data transmission

24bit数字地震观测系统的应用对无线数传设备提出了许多新的要求。不断恶化的外部电磁环境亦要求无线数传设备具有更强的抗干扰能力。在研制新一代异步无线数传调制解调板时 ,自主开发或引用了几项新技术并取得了很好的实用效果。异步数据复用是无线组网实现各种容量等级汇集中继的关键技术 ,在提高复用效率、完善容量等级、增加设备功能等方面有新的产品推出。这些新技术的应用和新成果的取得 ,不仅大大扩展了无线数传在地震遥测中的应用范围 ,亦大大提高了无线数传在强干扰中的生存能力。

Using the 24bit digital system of seismic observations requires telecommunication equipment have more stable abbilities.Under Worsen circumstances of electric and magnetic,the electric equipment should have the capabilities of anti-jamming.We developed and introduced several of new techniques in designing new generation circuit boards of modulator and demodulator with asynchronous transmission and got better effect.The circuit boards with the techniques of asynchronous data reuse are key parts for implementing the convergences of signals.To increase the efficient,to improve the load stages and to increase the functions of reuse,we produced new circuit boards such as the floating change monitoring and controlling equipment using solar power.All new equipment has the abilities of anti-jamming.