Fun this is.
By John Keller, Editor
Military & Aerospace Electronics, 1 April 2014
It might be a fun exercise to sit with the leading practitioners of high-performance embedded computing (HPEC) to trade opinions about what are the toughest, gnarliest, most knee-buckling HPEC challenges in the foreseeable future.
We would hear the usual — bistatic radar, adaptive electronic warfare (EW), and wide-area communications intelligence. Well, I’ve got one that’s a real beaut, and one that I think we’re all going to be hearing a lot more about: hypertemporal imaging for persistent surveillance.
Yeah, it was a new one on me, too. Put simply, hypertemporal imaging involves multispectral or hyperspectral imaging over time. Where persistent surveillance is concerned, it’s also a gigantic exercise in gathering gazillions of bits of data, and then throwing most of them away.
Multispectral and hyperspectral imaging involves slicing an image into a few or even many different spectral bands to uncover details that otherwise might be lost. This alone already present a formidable digital signal processing challenge. Now add the dimension of time and the problem grows by orders of magnitude.