Patent ID: 7893875
Filing Date: 2011-02-22
Classification: G01S

Abstract:
1. A device for geolocation, comprising: a) a first transmitter to be geolocated; b) a first receiver for receiving a signal transmitted by the transmitter, where the first receiver is in motion; c) a second receiver for receiving the signal transmitted by the transmitter, where the second receiver is in motion; d) a first digitizer on said first receiver for digitizing the signal received by the first receiver; e) a second digitizer on the second receiver for digitizing the signal received by the second receiver; f) a first converter on the first receiver for converting the signal digitized in step (d) to a complex-valued signal x[n]; g) a second converter on the second receiver for converting the signal digitized in step (e) to a complex-valued signal y[k]; h) a second transmitter on said first receiver for transmitting x[n], a location (x i) a third transmitter on said second receiver for transmitting y[k], a location (x j) a processor for receiving transmissions from the second transmitter and the third transmitter; and k) a central processing unit on said processor for determining a difference in radial velocities v where Δ is a sampling interval, c is a speed of light, (x