METHOD OF DETERMINING ORBIT PARAMETERS OF AN ARTIFICIAL EARTH SATELLITE USING RECEIVING REFERENCE BENCHMARK STATIONS Russian patent published in 2019 - IPC G01S5/00 

FIELD: astronautics.

SUBSTANCE: invention relates to the field of cosmonautics, namely to technique of performing trajectory measurements and determining the parameters of the orbit of an artificial earth satellite (AES), and can be used on ground and airborne flight control complexes to accurately determine the current parameters of satellite motion. Method is based on the reception and recording of radio signals of the receiving reference benchmark stations (RRBS) and the ground-based radio-technical stations (GBRTS) from the AES together with timestamps. By means of correlation processing values of mutual time delays and frequency shifts are measured. Coordinates of the artificial earth satellite are calculated based on the known coordinates of the GBRTS and M RRBS, as well as calculated differences of ranges ΔR_m, where m is RRBS number. Orthogonal components of the AES speed vector are calculated from known coordinates of the GBRTS and M RRBS, calculated AES coordinates, calculated radial velocity differences and preset frequency of shift of the AES working frequency. Parameters of the artificial satellite orbit are taken to be a set of coordinates of the artificial earth satellite and orthogonal components of its velocity vector at time t₀.

EFFECT: high accuracy of determining parameters of the AES orbit, providing a wider field of use owing to use of a GBRTS placed in a position with known coordinates operating in a reception mode and M≥3 RRBS at positions with known coordinates.

1 cl, 5 dwg, 4 applications