说明：  本程序利用金井清功率谱--三角级数法模拟人造地震波 杜修力的是高频和低频部分的修改，在matlab中加了ad1和ad2两个修改项
(procedures for the use of the Large-power spectrum-- Triangle Series artificial earthquake simulation of Podujevo repair of high-frequency and low-frequency Department hours amendments to the Matlab adding the AD1 and ad2 two amendments items)