24 Nov
2001
24 Nov
'01
2:44 a.m.
Damn. If this really works it is a cheap countermeasure to low-observable ("stealth") technology. In effect, everybody within the GPS and/or GLONASS coverage area has his own multistatic radar available 7/24. I wonder if this has actually been implemented... Marc de Piolenc mean-green@hushmail.com wrote:
US Pat. 6,232,922
Passive three dimensional track of non-cooperative targets through opportunistic use of global positioning system (GPS) and GLONASS signals
Abstract A method and apparatus for utilization of GPS, GLONASS or other existing RF signals is disclosed. These existing RF signals are scattered by targets, with a receiver of these scattered signals providing processing to extract three dimensional track of these objects.