METHOD FOR REGULAR DETECTION OF USEFUL RADIO SIGNALS Russian patent published in 2019 - IPC G01S13/04 

FIELD: radio engineering and communications.

SUBSTANCE: invention relates to radio engineering and can be used in systems of over-the-horizon radar ranging (OTHRR), radio sounding and radio-direction finding. Method includes radio reception of signals containing information on location and parameters of target movement, conversion of received signals into digital form and processing of digital signals S̃_2, wherein during processing of digital signals S̃₂ performing simultaneous calculation of functional discrepancy ΔI² between S̃₂ and reference signal and determination of cumulative errors ξ (δ, h) of received signal measurements, comparing ΔI² with ξ (δ, h) and by the discrepancy detection criterion ΔI² within ξ (δ, h) taking a decision on detection of useful signals containing regularized interval estimates [Ẑ] of target information parameters, then minimally-extremum of functional discrepancy inf is calculated ΔI² and based on that, decision is made on estimates Ẑ of location and parameters of target motion by criterion of finding inf ΔI² within interval estimates [Ẑ].

EFFECT: high reliability of over-the-horizon detection of location and motion parameters of target-location objects in conditions of uncertainty of propagation paths of radio waves and radiophysical characteristics of surface layers of the atmosphere.

4 cl, 3 dwg