METHOD OF DETERMINING COORDINATES OF TARGET IN THREE-POSITION RANGING RADAR SYSTEM Russian patent published in 2014 - IPC G01S13/46 

FIELD: physics, navigation.

SUBSTANCE: invention can be used in radar and radio navigation systems, as well as in mobile communication systems to locate objects. The result is achieved by emitting probing signals at each position; receiving signals reflected from the target emitted by that position; measuring, based on the received signals, the range from that position to the target; determining coordinates of the target, wherein the rate of change of range is further measured at each position; receiving signals reflected from the target, emitted by two other positions; separating the received signals according the position emitting said signals; measuring, based on the received signal, two sums of ranges and rate of change thereof from that position to the target and from the target to two other positions and three paired differences of ranges and rate of change thereof from the first, second and third positions to the target; transmitting signals corresponding to the measured values of range and rates of change thereof, the sum and difference of the ranges and rate of change thereof to two other positions; measuring three differences of the sum of distances and rate of change thereof between positions of the system; calculating refined values of range and rate of change thereof from the first, second and third positions to the target using corresponding formulae.

EFFECT: high accuracy of determining coordinates of a target in a three-position ranging radar system.

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