05982164 is referenced by 15 patents and cites 7 patents.

In a system for locating the position of a transmitter, a platform containing an antenna is moved through a measurement path. The frequency received by the antenna is measured at measurement points distributed along a measurement path. The frequency is measured by cross correlating coherent pulses of the received frequency signal. An inertial navigation system on the platform indicates the position of the measurement path. A computer determines estimated locations by non-linear least squares convergence starting from trial locations. The non-linear least squares convergence is based on the frequency equation for the received frequency ##EQU1## in which f.sub.0, is the transmitter frequency, V is the antenna velocity and r is the range of the transmitter. The computer evaluates a cost function derived from the frequency equation, for each location estimated by the non-linear least squares convergence and selects the estimated location with the lowest cost function as the best solution.

Title
Doppler triangulation transmitter location system
Application Number
731193
Publication Number
5982164
Application Date
May 29, 1998
Publication Date
November 9, 1999
Inventor
Carl Gerst
Skirentelos
NY, US
James A Johnson
Newark Valley
NY, US
Steven V Czarnecki
Appalachia
NY, US
Agent
Robert P Lane Aitken and McCann Cogan
Assignee
Lockheed Martin Corporation
MD, US
IPC
G01R 23/02
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