EDAS-C24型数字测震仪实时数据的解码及加速度和位移仿真的实现

Implement for EDAS-C24 Digital Seismograph Real-time Data Decoding and Simulation of Ground Displacement and Acceleration

本文尝试使用了一种图形编程语言进行数据解码和仿真研究,阐述了用该语言实现EDAS-C24型数字测震仪实时数据流的解码过程,提出了在G语言下利用数字滤波器逼近模拟积分器及模拟微分器响应实现对解码数据实时仿真的方法,并通过设定频带宽度,比较了设计的补偿滤波响应和实际的幅频响应的一致性。结果表明,在设定的频带内,补偿滤波响应和实际的幅频响应是一致的,仿真的精度是理想的,成果已经在广东省地震科普馆的地震互动区部署运行,取得了一定的实效。

This paper outlines a new research on data decoding and simulation using graph programming language,which can realize decoding real-time stream of EDAS-C24 digital seismometer.A new method is proposed to realize real-time simulation for decoded data by using digital filter approach to the response of analog integrator and differentiator with G programming language.Through setting the bandwidth,we compared the designed compensation filter response with the actual amplitude-frequency response.We found that the compensation filter response is consistent with the actual amplitude response with a good simulation precision.This method has been well applied to the interaction display area of earthquake science museum of Guangdong province.