CONTROL METHOD AND DEVICE OF STATE OF GUARDED OBJECT Russian patent published in 2011 - IPC G08B25/10 G08G1/123 

FIELD: radio engineering.

SUBSTANCE: at preparation stage there are stored distinguishing features of all guarded objects. For all stationary direction-finding stations (SDFS) with known coordinates, which are made in the form of phase interferometres, there calculated are reference values of primary spatial-informative parametres (PSIP). At operation stage of SDFS there received is alarm signal from "ПОО" and repeated to central control station together with measured PSIP. In it there performed is single-stage processing of received signals and determination of identifying signs of objects; movement of operative group is specified in compliance with "ПОО" movement. When "ПОО" approaches the boundary of control zone, M+1 position finder is connected to operation on flying vehicle which activates the transmitter of this "ПОО". Distance d_i of "ПОО" from flying vehicle is measured. At the same time, there determined is location and spatial orientation of flying vehicle, as well as preliminary coordinates of "ПОО". Measured location of "ПОО" is corrected. Improvement of measurement accuracy of "ПОО" coordinates is reached by subsequent consideration of mutual orientation of antenna system of position finder and flying vehicle, orientation of flying vehicle in space by changing over from one system of coordinates to the other.

EFFECT: effective tracking.

2 cl, 23 dwg