METHOD FOR REGULARIZED DETECTION OF USEFUL SIGNALS OF OVER-THE-HORIZON RADAR WITH NON-STATIONARY IONOSPHERIC-SPATIAL PROPAGATION OF RADIO WAVES Russian patent published in 2024 - IPC G01S13/02 G01S13/04 H04B7/22 

FIELD: radar.

SUBSTANCE: invention relates to over-the-horizon radar (OTHR), specifically to a method for regularized detection of useful signals of over-the-horizon radar with non-stationary ionospheric-spatial propagation of radio waves (ISPRW). Method can be used in conditions of critical action on reception of location signals of the ionosphere as a non-stationary medium of radio wave propagation (RWP), all kinds of active and passive interference. In the disclosed method of regularized detection (RGD), a reference signal (RS) of an over-the-horizon radar (OTHR) and its main components – model representations of passive interference and the received response from the Target – are formed at the beginning of each current processing interval T_PROC of the received signals. On interval T_PROC, not exceeding interval Δt_{st rel} relative stationarity ISPRW, reference signal of OTHR and its main components are formed with required RGD for regularization of solutions with limited space of Z parameters of the composition of the complex of model representations A_PI of the intrinsic radiophysical characteristics (RPC) of all elements of the location route – sources of passive interference PI, equivalent to their complex multiplicative action (MP-action) on LCS on route, to space {Ẑ} of their allowable parameters within the space {Z} of their possible parameters [{Ẑ}∈{Z}]. As well as with a regularizing restriction of the space of Z parameters of model representations A_T of own RPC of potential Targets, which are equivalent to their MP-action on the LCS on the route, to space {Ẑ} of their allowable parameters within space {Z} of their possible parameters [{Ẑ}∈{Z}].

EFFECT: correct formation in conditions of non-stationary ISPRW of a reference signal of a regularized detector and its main components.

1 cl, 4 dwg