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http://dx.doi.org/10.11003/JPNT.2021.10.2.91

Design of Multi-Constellation and Multi-Frequency GNSS SDR with Fully Reconfigurable Functionality  

Song, Young-Jin (Autonomous Navigation Lab., Inha University)
Lee, Hak-beom (Autonomous Navigation Lab., Inha University)
Won, Jong-Hoon (Department of Electrical Engineering, Inha University)
Publication Information
Journal of Positioning, Navigation, and Timing / v.10, no.2, 2021 , pp. 91-102 More about this Journal
Abstract
In this paper, a fully reconfigurable Software Defined Radio (SDR) for multi-constellation and multi-frequency Global Navigation Satellite System (GNSS) receivers is presented. The reconfigurability with respect to the data structure, variability of signal and receiver parameters, and receiver's internal functionality is presented. The configuration file, that is modified to lead to an entirely different operation of the SDR in response to specific target signal scenarios, directly determines the operating characteristics of the SDR. In this manner, receiver designers can effectively reduce the effort to develop many different combinations of multi-constellation and/or multi-frequency GNSS receivers. Finally, the implementation of the presented fully reconfigurable SDR is included with the experimental processing results such as acquisition, tracking, navigation for the received signals in the realistic fields.
Keywords
GNSS SDR; reconfigurability; multi-constellation; multi-frequency;
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