METHOD FOR DETERMINING COORDINATES OF RADIO EMISSION SOURCE Russian patent published in 2017 - IPC G01S5/10 

FIELD: radio engineering, communication.

SUBSTANCE: on the object, a radio signal (RS) is formed and transmitted in the form of three high-frequency harmonic oscillations with predetermined frequencies containing the specified high-frequency component and specified low-frequency components. When receiving and processing of RSs, the conditions specified in the method are satisfied. The RSs, received by each of the stations, are transmitted over the corresponding communication lines to a single center. It carries out quarter-phase reception of high-frequency RSs, received from each of the stations with specified frequencies of the local oscillators. The obtained analogue quarter-phase components are converted into digital quarter-phase components (DQPC). For each RS, DQPC, corresponding to the three-mentioned low-frequency harmonic oscillations, are sequentially formed. From the obtained DQPCs they form DQPCs, corresponding to the harmonic oscillations at difference frequencies, and based on the DQPCs they form DQPCs, corresponding to oscillation phase differentials with the same difference frequencies, but belonging to RSs from different stations. Based on the DQPCs formed by this method (considering time delays in forming and transmitting signals to communication lines) relative distances are expressly identified to the object from the phase centers of station antennas and, based on them, the spatial coordinates of the antenna phase center of the object are expressly identified.

EFFECT: ensuring unambiguous definition of the spatial coordinates of the radio emission source, located in any point of space, with high accuracy.

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