2009考研真题——信号与系统科目，详细讲解。-2009 Kaoyanzhenti- Signals and Systems course, explain in detail.

这是有关信号与系统的pdf格式的书籍，还有单片机的内容，我一起打包上传了。内容很好，很精彩！-This is a pdf format books on signals and systems, as well as the content of the microcontroller, packaged together uploaded. Very good, very exciting!