Print Email Facebook Twitter Implementation of the Cityfix receiver concept Title Implementation of the Cityfix receiver concept Author Arrachart, R.A. Contributor Coenen, A.J.R.M. (mentor) Helwig, A.W.S. (mentor) Faculty Electrical Engineering, Mathematics and Computer Science Department Telecommunicatie- en Verkeersbegeleidingssystemen Date 2000-03-02 Abstract Cityfix is an integrated navigation system, which combines Differential GNSS and MW-radio transmissions. During outages or poor performance of the DGNSS the Cityfix system measures the carrier wave phases of the MW-radio transmitters to determine a displacement from the last accurate DGNSS position. This paper describes the implementation of the Cityfix receiver concept. The Cityfix system organization will be explained as well as the architecture of the Cityfix software radio receiver. At Delft University a test set-up has been built to measure the phases of the available MW-radio transmitters. The test result shows that with a minimum number of transmitters required, the Cityfix receiver can determine a position displacement accurate within 10 metres. This accuracy was obtained for 5 minutes. The ability of using more transmitters should improve the accuracy and prolong the time of an accurate measurement. Subject Cityfixsoftware radiopositioningnavigationEurofixAM/medium wave radio transmittersphase stabilityfrequency stability To reference this document use: http://resolver.tudelft.nl/uuid:5f4e2dfa-6d85-48b0-ae3a-2849d6ec955f Part of collection Student theses Document type master thesis Rights (c) 2000 R.A. Arrachart Files PDF AA278926_2.pdf 884.79 KB Close viewer /islandora/object/uuid:5f4e2dfa-6d85-48b0-ae3a-2849d6ec955f/datastream/OBJ/view