METHOD OF DETERMINING COORDINATES OF RADIO SIGNAL SOURCES WITH MUTUALLY OVERLAPPING SPECTRA Russian patent published in 2025 - IPC G01S3/72 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering and can be used in multi-position radio monitoring systems for detecting and determining coordinates of radio signal sources with mutually overlapping spectra. Disclosed method realizes spatially multichannel signal processing with combined estimation of the direction of arrival, level and bandwidth of the high-frequency spectrum of each received radio signal. In the method, the received energy levels are additionally estimated for each spectral reading, the radio technical parameters of the signals are calculated – the central frequency and bandwidth of the detected RFS, frequency boundaries of signals are determined from levels calculated relative to a spectral reading with maximum energy for each detected signal. In accordance with the selected threshold for each signal, its frequency boundaries are determined, and the centre frequency is determined as a weighted average value in the frequency range of the detected signals. Radio parameters corresponding to bearings from the first receiving station and from the second receiving station are compared. Euclidean distances of radio engineering parameters are calculated. Decision is made based on the criterion of minimum Euclidean distance of radio parameters on whether bearings belong to a certain source of active interference.

EFFECT: high accuracy and reliability of determining coordinates of radio signal sources with mutually overlapping spectra in conditions of a priori uncertainty relative to the shape and levels of emitted signals, as well as characteristics of their attenuation on radio wave propagation paths.

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