O'Keefe, KyleKahr, Erin Jennifer2017-12-182017-12-182011Kahr, E. J. (2011). In-orbit performance of the canx-2 nanosatellite's gps receiver (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/4484http://hdl.handle.net/1880/105485Bibliography: p. 123-129.Many pages are in colour.Includes a copy of Copyright Permissions. Originals with original copy of Partial Copyright Licence.The CanX-2 Nanosatellite is a student built satellite launched into orbit April 28tl1, 2008. Among its scientific payloads, CanX-2 is carrying a commercial off the shelf dual frequency geodetic grade GPS receiver. The receiver, a Nov Ate] OEM4-G2L, is operated intermittently and has been used for the collection of both radio occultation data and orbit determination data. This thesis presents an empirical study of the acquisition properties of the OEM4-G2L under orbital dynamics. A method has been designed for rapidly acquiring a position fix in spite of CanX-2's orbital velocity. First hand experiences of acquisition successes and challenges in orbit have helped refine the method, ultimately cutting the average acquisition time down from 20 minutes to 3.5 minutes, at the cost of operational complexity. An algorithm enabling the same rapid acquisition without ground support has been designed based on the constraints of nanosatellite operations, and validated using CanX-2 data.xx, 144 leaves : ill. ; 30 cm.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.master thesis10.11575/PRISM/4484