00000nam 2200000za 4500 9.856207 CaOODSP 20240221113057 cr ||||||||||| 180507s2017 quc |o f|0| 0 eng d CaOODSP eng n-cn--- D68-10/110-2017E-PDF Observability of satellite launcher navigation with INS, GPS, attitude sensors and reference trajectory [electronic resource] / Yanick Beaudoin ... [et al.] [Valcartier, QC] : Defence Research and Development Canada, 2017. [16] p. External literature (P) ; DRDC-RDDC-2017-P110 Cover title. "Can unclassified." "November 2017." Includes bibliographic references. "The navigation system of a satellite launcher is of paramount importance. In order to correct the trajectory of the launcher, the position, velocity and attitude must be known with the best possible precision. In this paper, the observability of four navigation solutions is investigated. The first one is the INS/GPS couple. Then, attitude reference sensors, such as magnetometers, are added to the INS/GPS solution. The authors have already demonstrated that the reference trajectory could be used to improve the navigation performance. This approach is added to the two previously mentioned navigation systems. For each navigation solution, the observability is analyzed with different sensor error models. First, sensor biases are neglected. Then, sensor biases are modelled as random walks and as first order Markov processes"--Abstract. gccst Satellites gccst Navigation systems Beaudoin, Yanick, 1974- Defence R&D Canada. Valcartier Research Centre. External literature (P) (Defence R&D Canada) DRDC-RDDC-2017-P110 (CaOODSP)9.854437 PDF 465 KB https://publications.gc.ca/collections/collection_2018/rddc-drdc/D69-53-2017-eng.pdf