METHOD OF DETERMINING ORTHOGONAL COMPONENTS OF VELOCITY VECTORS OF TWO SPACECRAFT USING EARTH STATIONS AND EMITTING SUPPORTING REFERENCE STATION Russian patent published in 2024 - IPC G01S5/00 B64G3/00 G01C21/24 G01S3/46 G01S13/58 G01S19/03 

FIELD: astronautics; measurement.

SUBSTANCE: invention relates to the field of astronautics, namely to the technique of trajectory measurements and determination of the spacecraft (SC) orbit parameters, and can be used on ground and on-board SC flight control systems for accurate determination of current parameters of SC movement. Method of determining velocity vectors of main spacecraft (MSC) ẋ₁, ẏ₁, ż₁ and adjacent spacecraft (ASC) ẋ₂, ẏ₂, ż₂ includes: radiation at time t₀ of a test radio signal of a receiving-transmitting radio station (RTRS) with a value of nominal frequency ƒ_K, measurement in RTRS of nominal frequencies of realizations of test radio signal of RTRS ƒ_KS1K and ƒ_KS2K after its retransmission by MSC and ASC, respectively, emission at time t₀ of test radio signal of emitting supporting reference station (ESRS) with value of nominal frequency ƒ_H, measurement of nominal values of frequencies of realization of test radio signal of ESRS in RTRS ƒ_HS1K and ƒ_HS2K after its retransmission by MSC and ASC, respectively, measurement for each n-th earth station (ES) with known coordinates x_In, y_In, z_In, where n=1…N is the number of the ES, N≥2, values of nominal frequencies ƒ_InS1K and ƒ_InS2K received radio signals after their retransmission by MSC and ASC, respectively, calculation of orthogonal components of velocity vectors of MSC ẋ₁, ẏ₁, ż₁ and ASC ẋ₂, ẏ₂, ż₂ based on measured frequency shifts of radio signals of the system.

EFFECT: high accuracy of determining orthogonal components of velocity vectors of MSC and ASC due to transmission and reception of test radio signals of RTRS, selection of ES and arrangement of RTRS, ESRS so that mutual distances between them were maximum, and their coordinates would be simultaneously in areas of MSC and ASC coverage at the moment of time t₀.

2 cl, 5 dwg, 1 apps