无线数字地震遥测中的几种新技术

Several new techniques in radio digital seismic telemetry

介绍了我国无线数字地震遥测中采用的几种主要新技术，但不涉及具体的设备。正是这些新技术使新的一代数字遥测地震台网技术性能产品较早发生质的飞跃。这些新技术包括地震波形数字化的过采样技术，数据传输中使用的紧缩频谱调制技术和差错控制技术等。其中某些技术可能早已在其他工业部门应用。

Several new main techniques adopted in our radio digital seismic telemetry are introduced in this paper,without discussion about specific equipments.It is these new main techniques that make an essential development in the new generation of digital telemetric seismic networks.The new techniques include oversampling technique in digitalization of seismic wave form,spectrum contraction technique in data transmitting and error controlling and so on.Some of the new techniques may have been applied in the other fields for a long time,but most of them is used in ditital telemetric seismic networks for the first time.