METHOD OF DETERMINING THE LOCATION OF SATELLITE EARTH STATION Russian patent published in 2018 - IPC G01S5/06 

FIELD: radio engineering.

SUBSTANCE: invention relates to the field of satellite radio monitoring and can be used in the search and localization of satellite earth station (SES), which are stray radiation sources (SRS) in barrels with direct retransmission of satellite transponders (ST) in the geostationary orbit. This result is achieved due to the fact that the method for determining the location of the SES is as follows. At the same time, sequences of readings of the levels of the useful signals of the SES y_s(n) and spurious emission x(n) taken at the observation interval T_H stationary station of satellite radio monitoring (SSRM), where n=1, 2, …, N – numbering of counts in increments Δt, Δt=const, s = 1, 2, …, S is the numbering of legitimate SES with known coordinates working through this ST. Based on a comparison of adjacent samples of the sequences y_s(n) and x(n) form one-dimensional arrays: A_s with elements A_s(k)=1 if y_s,k<y_s,k+1, A_s(k)=-1, if y_s,k>y_s,k+1, A_s(k)=0 if y_s,k=y_s,k+1, and B with elements B(k)=1 if x_k<x_k+1, B(k)=-1 if x_k>x_k+1, B(k)=0 if x_k=x_k+1, where k=1, 2, …, N-1. Elements of arrays A_s and B with the same indices are compared in pairs and produce a sign: "unit" – if the elements coincide and "zero" – if there is a mismatch. For each pair of arrays A_s and B sum up the obtained characteristic values and determine the number of coincidences of the elements with the same indices w_s. To assess the similarity of the dynamics of the sequences y_s(n) with the sequence x(n) use the exponent W_s=w_s/(N-1). Location of the SRS is determined by reference to the geographic coordinates of the SES, for which the exponent W_r≥0.95, where r is the SES-SRS index in the composition of legitimate SES.

EFFECT: simplification of the implementation of the method and elimination of the limitation of functionality in the territory with a high density of SES.

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