請問反應譜如何轉換成功率譜？有程序嗎

看看這個帖子： <a href="http://www.pudn.com/downloads140/doc/detail605708.html
" _src="http://www.pudn.com/downloads140/doc/detail605708.html ">http://www.pudn.com/downloads140/doc/detail605708.html </a>或者以下資料： <img style="font-family:宋體, SimSun;font-size:14px;vertical-align: middle; margin-right: 2px;" src="http://www.yqgqt.org.cn/platform/static/ueditor/dialogs/attachment/fileTypeImages/icon_pdf.gif"/><a style="font-family:宋體, SimSun;font-size:14px; color:#0066cc;" href="http://oss.jishulink.com/upload/201701/1483232628855_從反應譜求功率譜的精確方法及其應用.pdf" title="從反應譜求功率譜的精確方法及其應用.pdf">從反應譜求功率譜的精確方法及其應用.pdf</a><img style="font-family:宋體, SimSun;font-size:14px;vertical-align: middle; margin-right: 2px;" src="http://www.yqgqt.org.cn/platform/static/ueditor/dialogs/attachment/fileTypeImages/icon_pdf.gif"/><a style="font-family:宋體, SimSun;font-size:14px; color:#0066cc;" href="http://oss.jishulink.com/upload/201701/1483232631003_地震動功率譜與反應譜的轉換關系_趙鳳新.pdf" title="地震動功率譜與反應譜的轉換關系_趙鳳新.pdf">地震動功率譜與反應譜的轉換關系_趙鳳新.pdf</a><img style="font-family:宋體, SimSun;font-size:14px;vertical-align: middle; margin-right: 2px;" src="http://www.yqgqt.org.cn/platform/static/ueditor/dialogs/attachment/fileTypeImages/icon_pdf.gif"/><a style="font-family:宋體, SimSun;font-size:14px; color:#0066cc;" href="http://oss.jishulink.com/upload/201701/1483232635161_地震反應譜_功率譜以及傅立葉譜關系探討.pdf" title="地震反應譜_功率譜以及傅立葉譜關系探討.pdf">地震反應譜_功率譜以及傅立葉譜關系探討.pdf</a>