Estimation of satellite orbit parameters by means of GNSS

One of the possible applications of satellite navigation systems (GNSS) is construction of autonomous spacecraft navigation systems (ASNS). Benefits of ASNS over traditional systems of spacecraft trajectory measurements: reducing of the load on the ground control stations and reduction of dependence on them, the ability to make measurements at any point of the orbit (for LEO vehicles). There is the problem of estimating and predicting the orbital parameters from measurements of ASNS. The results of this task are in demand in a variety of special applications. This article proposes an filtration algorithm for estimating the parameters orbit as osculating orbital elements. Discriminators are synthesized. The results of the simulation are given.