当我们一听到“数字信号处理”这个字眼时,似乎既显耳熟,又难以确切道出其全面的概念。其实,在信息社会,从现在运用相当普及的移动电话到网上冲浪,乃至军事上的卫星定位和导弹制导等等来看,每个人随时随地都会接触到数字化。只要存在数字化,就会用到数字信号处理技术,可以说,它早已是无处不在了！希望我们对中国科学院计算技术研究所侯紫峰研究员的访谈,能拓宽您在该领域的视野。 When we hear the word “digital signal processing”, it seems that we are familiar with it and that it is hard to say its full concept. In fact, in the information society, everybody is exposed to digitization anytime, anywhere from nowadays using rather popular mobile phones to web surfing, as well as military satellite positioning and missile guidance. As long as there is digitization, digital signal processing technology is used, so to speak, it is already everywhere! We hope that our interview with Hou Zifeng, a researcher at the Institute of Computing Technology, Chinese Academy of Sciences, can broaden your horizons in this field.