Abstract: This work introduces a metamaterial (MTM)-integrated space-time coding (STC) transmitting array to detect the multitarget vital sign signals including respiration and heart rates (HR). A ...

Abstract: Sparse arrays designed based on fourth-order difference co-array (DCA) can achieve significantly higher uniform degrees-of-freedom (uDOFs). However, most existing fourth-order sparse arrays ...

I have zero coding skills, but I was able to quickly assemble camera feeds from around the world into a single view. Here's how I did it—and what it means for all of us. I'm the Executive Editor, ...