Method for locating a radiation source using power measurements
AssigneeSoftronics, Ltd.
InventorRobert Sternowski
Life of this patent
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Abstract
A system suitable for determining a location of an emitter emitting a radiation signal from an unknown location has a vehicle with a location position determining apparatus to receive a location datum, so the location of the vehicle can be determined when the radiation signal is received. A sensor connected to a receiver is positioned on the vehicle to detect and receive the radiation signal at a plurality of locations. A processor having a program executing therein determines the power level of the radiation signal at each measurement location and determines the location of the emitter from the change in power level of the radiation signal between measurement locations.
Claims12
A system for determining a probable location of an emitter emitting a radiation signal, the system comprising:
- a moving reference frame for taking measurements at a plurality of distinct, separate, and random measurement points with respect to the emitter that is effectively stationary with respect to a speed of the moving reference frame,
- a GPS receiver mounted on the moving reference frame for obtaining a location datum for the moving reference frame at each of the plurality of measurement points,
- a power measurement sensor mounted on the moving reference frame to detect a power measurement for a radiation signal at each of the plurality of measurement points with respect to the emitter,
- a display for graphically presenting the probable location of the emitter,
- a processor configured to associate the location datum from the GPS receiver at each of the plurality of measurement points with the power measurement for the radiation signal obtained from the power measurement sensor, and
- the processor connected to the power measurement sensor and programmed to calculate a power level of the radiation signal at the plurality of measurement points and to calculate a solution for the probable location of the emitter from a change in power level of the radiation signal between every pair of measurement points, and calculate the probable location of the emitter according to a location point for the probable location of the emitter having a greatest number of solutions, and transmit a graphical representation for the probable location of emitter to the display for graphically presenting the probable location of the emitter.
Dependencies are inferred from the claim text.