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Hardware Hacking Build

Radar Expert Explains How To Cheaply Add Radar To Your Own Hardware Projects 69

szczys writes "Gregory Charvat has been playing with and teaching others about entry-level radar concepts for a long time. Now he's sat down and explained how you can do it yourself inexpensively. He says, 'One enabling technology for Radar was the cathode ray tube (CRT), which facilitated a method of measuring the time delay between transmitted and received waveforms. ... Today, rather than using a CRT we can use high-speed digitizers. This offers the obvious advantage of applying signal processing to acquired data so that only moving targets are detected, tracking can be achieved, imaging, and a multitude of other modes. But for hobbyist and consumer projects we do not need this much power, range, and can not afford the cost. We need the ability to sense like a long range radar (detecting only moving targets, imaging, Doppler, signatures, etc) but at short ranges and at low costs.' Charvat then proceeds to walk through several options for the amatuer hardware hacker."
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Radar Expert Explains How To Cheaply Add Radar To Your Own Hardware Projects

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  • by Anonymous Coward on Tuesday February 25, 2014 @07:16PM (#46340109)

    I can see it now.

    There you are innocently trying out your new homemade RADAR near the local airport. Your signals, as you bounce them off commercial airlines coming into land, are spotted quite easily by the tower and reported on to whomever controls security around the airport.

    You hear the sound of the 777 you have your cantenna aimed at suddenly drowned out by the much louder sound of a military jet approaching, the twin snake of missile exhaust flashes for a split second from under the wings.....

    News just in: Evil terrorist, planning to bomb a 777 and kill all passengers on board, killed by Air Force air to surface missile near JFK.

  • by WiiVault ( 1039946 ) on Tuesday February 25, 2014 @07:37PM (#46340279)
    What is a CRT? It it pronounced like Kurt, or CeeeArrrrrTeeee? Do they come with any cool apps? I do like the idea of my own ray tube though. Sounds pretty up and coming. Anybody know of any upcoming IPOs investing in this tech?
  • by Opportunist ( 166417 ) on Tuesday February 25, 2014 @10:16PM (#46341613)

    Ffft, we had an audible proximity alarm in our car before it became fancy. When you heard the bumper crunch, you knew you went too far.

    So it was very close proximity. So?

Some people manage by the book, even though they don't know who wrote the book or even what book.