METHOD OF SPACECRAFT CONDITION VECTOR DETERMINATION BY SPACE NAVIGATION SYSTEMS SIGNALS Russian patent published in 2008 - IPC G01S5/12 

FIELD: technological processes.

SUBSTANCE: measurements of pseudoranges are done between spacecraft-consumer and navigation spacecrafts of working constellation with number of at least two, at that in the moments of these measurements absence, spacecraft-consumer condition vector is predicted basing on the last obtained position estimation, and in the moments of measurements availability, in order to determine position of spacecraft, the multi-channel sequential Kalman filter is used for non-linear models of movement and measurement, which allows to determine position of spacecraft-consumer basing on measurements of pseudoranges between spacecraft-consumer and navigation spacecrafts of working constellation with number of at least two.

EFFECT: improves accuracy and simplifies determination of spacecraft-consumer condition vector.

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