摘要
用前置滤波放大器提高遥测接收机的抗干扰性和灵敏度的研究，在实践中获得了十分显著的效果。先后用于成都、乌鲁木齐、二滩、小浪底等台网和广州数字台网，提高了观测质量，获得了较高的运行率。在广州台网，螺旋晶体滤波器成功地解决了寻呼发射机阻塞和干扰帽峰山中继站的数字地震遥测接收问题；小浪底台网用该技术实现了收发频差仅０．６ＭＨｚ的可靠接收中继问题；乌鲁木齐台网则用该技术实现了地震遥测信息的超长站距传输问题，减少了中继站数目，节省了建设投资。
ver 10 years the author has been studying the problem of how to improve the antiinterference ability and the flexibility of telemetric receiver by using a prepositioned filter amplifier,which is one of the achievements the author made in this field.And this technology proved to improve the operaion efficiency in several seismic stations.For example,in Guangzhou the Spiralcrystal filter solved the problem that the signal radiator interferes the signal receiving in Maofengshan Relay Station and in Xiaolangdi. This new technology helped to build up the datatransfer network with a frequency difference smaller than 06 MHz.It also helped Urumqi seismic station to realize a longdistance data transfer;as a result,the numbers of the relay stations have been decreased and lots of investment have been saved.This paper is a summary about the above achievements.
出处
《地震地磁观测与研究》
1998年第3期54-59,共6页
Seismological and Geomagnetic Observation and Research
