蝙蝠、海豚甚至一些盲人可以通过使用回声,在头脑里建立起一个他们所在的环境的三维空间图。不久的将来,一部智能手机的啁啾声也可能让我们做同样的事情。位于瑞士洛桑的瑞士联邦技术研究所(EPFL)的Ivan Dokmanic和他的同事,已经开发出一种使用回声波可重构你所在房间的空间形状的系统装置。关于人类利用回声进行定位的关键是要对墙壁最早反射的回 Bats, dolphins and even some blind people can use their echoes to create a three-dimensional map of their environment in their heads. In the near future, the chirp of a smart phone may also allow us to do the same thing. Ivan Dokmanic and his colleagues at the Swiss Federal Institute of Technology (EPFL) in Lausanne, Switzerland, have developed a system that uses echos to reconfigure the spatial shape of your room. The key to positioning a human using echoes is to get the earliest reflection back on the wall