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RF, Microwave, Ham Radio / Re: High bandwidth FM signal generation
« Last post by mawyatt on Today at 06:26:30 pm »For example, imagine a large number of smart-phones moving around a large campus area and being elements in a vast synthetic aperture phased array able to dynamically beam form in real time while all the elements are moving around randomly!! You can imagine the enormous computational power required for this to work, yet all was condensed into a single ~1 Billion Device chip over a decade ago!!!
And how are the nodes (a) precisely time and phase synchronized and (b) controlled ?
I understand the theoretical part of this, but fail to see how it could practically be implemented on a large (kilometers) geographical scale.
Well that's just one of the many "You can't do that!!" parts of CLASS!!
The original solutions came out of MIT Lincoln Labs a couple decades ago, then DARPA developed a program to implement such with a few other "You can't do that's"
As you can imagine the signal processing is quite involved, and as the DARPA site mentions requires 1000X our processing power to unravel, and our chip was already at the edge of "Supercomputer" performance (mind this a dedicated processing chip, not GP)!!
Best,