单台地震预警实时方位角估算应用分析

摘要

Earthquake prediction requires location information of earthquake epicenter,and real-time monitoring of the earthquake wave and accurate location information of the earthquake can give the scope of earthquake affected.as soon as possible when the earthquake occurs.Single-station azimuth estimation can give the estimated azimuth angle results in a few seconds after the earthquake P wave arrival,and can meet the requirements of earthquake early warning timeliness.In this paper,the polarization analysis algorithm is applied to the practical engineering,and the reason of the error and the improvement of the method are analyzed.%地震动的预测需要地震的震中位置信息,实时监测地震波并快速给出地震的准确定位信息,可以在地震发生时尽快地给出地震可能影响的范围.单台站方位角估算可以在地震P波到达的几秒内就给出估算的方位角结果,能够满足地震预警时效性的要求.本文将偏振分析计算方位角算法应用到实际工程中,并分析了误差出现的原因以及改进的思路.