Abstract: To combat the Doppler shift caused by high mobility, orthogonal time frequency space (OTFS) systems have been proposed to convert the timevarying channel into a nearly time-invariant channel ...

Abstract: An iterative fast segmented cyclic convolution (IFSCC) method is presented for accurately and efficiently synthesizing the pattern of a uniformly spaced circular array (USCA) considering ...

A tool for spotting pancreatic cancer in routine CT scans has had promising results, one example of how China is racing to apply A.I. to medicine’s tough problems. Self-service kiosks at the ...