METHOD FOR SINGLE-POSITION RADAR LOCATION OF MOBILE OBJECTS ON ROAD NETWORK Russian patent published in 2014 - IPC G01S5/00 

FIELD: radio engineering, communication.

SUBSTANCE: method comprises measuring the angle of arrival of an electromagnetic wave (bearing) α_meas(t) from an object from one measuring point, the position of which is known, wherein signals emitted by the object include an identification code thereof; while emitting the signal, measuring at the object, the velocity ν_meas of said signal along a road network element; encoding a signal that is proportional to the measured velocity and transmitting the obtained code over a radio link to the measuring point where, after receiving and decoding, a value of the measured velocity is obtained; after a time Δt, re-measuring the bearing α_meas(t+Δt), with identification thereof from the identification code of the object; determining the length of the path Δe=Δtν_meas traversed over time Δt; based on the measured bearing α_meas(t) and parametric models of the bearing αⁱ(e), $$i=\overline{\mathrm{1,}I},$$ given in the function of a natural parameter, for each road network element, determining the values of the natural parameter $$e_i^{*},$$ $$i=\overline{\mathrm{1,}I},$$ corresponding to points of intersection of the position line for the measured bearing α_meas(t) and the road network element; for each of said elements, determining bearing candidates $${\alpha }^i\left(e_i^{*}+\Delta e\right),$$ $$i=\overline{\mathrm{1,}I},$$ corresponding to movement of the object by a distance Δe, and determining the number i* of road network elements on which the object is located based on the condition of minimal mismatch between said candidates and the measured bearing α_meas(t+Δt); determining coordinates of the object as coordinates of the point of intersection of the position line corresponding to the measured bearing (α_meas(t) or α_meas(t+Δt)) and the i*-th road network element.

EFFECT: unique determination of a mobile object associated with a road network.

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