1.引言为了扩充北京地震台网的实用功能,为研究地震提供更多的有用资料,我们在北京台网利用数字地震波形记录,开展了常规的近震波谱分析,编辑出版了“北京地震台网地震波谱和震源参数观测报告”,并开展了一些应用研究。我们在赵仲和、王凌南等编制的有 1. INTRODUCTION In order to expand the practical functions of Beijing Seismic Network and provide more useful information for the study of earthquakes, we used digital seismic waveform recording in Beijing Network to carry out conventional near-field spectral analysis and edited and published “Beijing Seismostation Net seismic wave spectrum and source parameters observation report ”, and carried out a number of applied research. We have in Zhao Zhonghe, Wang Lingnan compiled