| US 7,453,400 B2 | ||
| Multiplatform TDOA correlation interferometer geolocation | ||
| Keith A. Struckman, Grand Junction, Colo. (US); and Allan M. Kabel, Hollis, N.H. (US) | ||
| Assigned to BAE Systems Information and Electronic Systems Integration Inc., Nashua, N.H. (US) | ||
| Filed on Feb. 02, 2007, as Appl. No. 11/701,679. | ||
| Prior Publication US 2008/0186235 A1, Aug. 07, 2008 | ||
| Int. Cl. G01S 3/02 (2006.01) | ||
| U.S. Cl. 342—465 [342/463] | 21 Claims |
| 1. A method for locating a remote transmitter from which an electromagnetic signal is being received using an antenna and
a receiver mounted on each of a plurality of moving platforms, and indicating the geolocation of the transmitter, the method
comprising the steps of:
(a) obtaining a plurality of sets of samples of the electromagnetic signal received with the antenna and receiver on each
moving platform, there being one set of samples received at each moving platform for each of a plurality of time periods;
(b) placing a time and location stamp on each of the signal samples obtained in step (a) indicating the time when and the
location where each signal sample is taken;
(c) transmitting the signal samples received at each moving platform and having the time and location stamps thereon per step
(c) to a central location;
(d) storing at the central location the set of signal samples transmitted in step (c) from each moving platform for each period
of time;
(e) processing the stored set of signal samples from all the moving platforms for each period of time to produce an individual
data set for each period of time; and
(f) analyzing the data sets produced in step (e) to determine the geolocation of the remote transmitter.
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