Overcoming the Challenges of BeiDou Receiver Implementation
Global Navigation Satellite System (GNSS)-based positioning is experiencing rapid changes. The existing GPS and the GLONASS systems are being modernized to better serve the current challenging applications under harsh signal conditions. These modernizations include increasing the number of transmis...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2014-11-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/14/11/22082 |
| _version_ | 1818039710292901888 |
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| author | Mohammad Zahidul H. Bhuiyan Stefan Söderholm Sarang Thombre Laura Ruotsalainen Heidi Kuusniemi |
| author_facet | Mohammad Zahidul H. Bhuiyan Stefan Söderholm Sarang Thombre Laura Ruotsalainen Heidi Kuusniemi |
| author_sort | Mohammad Zahidul H. Bhuiyan |
| collection | DOAJ |
| description | Global Navigation Satellite System (GNSS)-based positioning is experiencing rapid changes. The existing GPS and the GLONASS systems are being modernized to better serve the current challenging applications under harsh signal conditions. These modernizations include increasing the number of transmission frequencies and changes to the signal components. In addition, the Chinese BeiDou Navigation Satellite system (BDS) and the European Galileo are currently under development for global operation. Therefore, in view of these new upcoming systems the research and development of GNSS receivers has been experiencing a new upsurge. In this article, the authors discuss the main functionalities of a GNSS receiver in view of BDS. While describing the main functionalities of a software-defined BeiDou receiver, the authors also highlight the similarities and differences between the signal characteristics of the BeiDou B1 open service signal and the legacy GPS L1 C/A signal, as in general they both exhibit similar characteristics. In addition, the authors implement a novel acquisition technique for long coherent integration in the presence of NH code modulation in BeiDou D1 signal. Furthermore, a simple phase-preserved coherent integration based acquisition scheme is implemented for BeiDou GEO satellite acquisition. Apart from the above BeiDou-specific implementations, a novel Carrier-to-Noise-density ratio estimation technique is also implemented in the software receiver, which does not necessarily require bit synchronization prior to estimation. Finally, the authors present a BeiDou-only position fix with the implemented software-defined BeiDou receiver considering all three satellite constellations from BDS. In addition, a true multi-GNSS position fix with GPS and BDS systems is also presented while comparing their performances for a static stand-alone code phase-based positioning. |
| first_indexed | 2024-12-10T08:02:57Z |
| format | Article |
| id | doaj.art-3d034977dcf7454ebe57710868c8cbeb |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-12-10T08:02:57Z |
| publishDate | 2014-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-3d034977dcf7454ebe57710868c8cbeb2022-12-22T01:56:44ZengMDPI AGSensors1424-82202014-11-011411220822209810.3390/s141122082s141122082Overcoming the Challenges of BeiDou Receiver ImplementationMohammad Zahidul H. Bhuiyan0Stefan Söderholm1Sarang Thombre2Laura Ruotsalainen3Heidi Kuusniemi4Department of Navigation and Positioning, Finnish Geodetic Institute, 02430 Kirkkonummi, FinlandDepartment of Navigation and Positioning, Finnish Geodetic Institute, 02430 Kirkkonummi, FinlandDepartment of Navigation and Positioning, Finnish Geodetic Institute, 02430 Kirkkonummi, FinlandDepartment of Navigation and Positioning, Finnish Geodetic Institute, 02430 Kirkkonummi, FinlandDepartment of Navigation and Positioning, Finnish Geodetic Institute, 02430 Kirkkonummi, FinlandGlobal Navigation Satellite System (GNSS)-based positioning is experiencing rapid changes. The existing GPS and the GLONASS systems are being modernized to better serve the current challenging applications under harsh signal conditions. These modernizations include increasing the number of transmission frequencies and changes to the signal components. In addition, the Chinese BeiDou Navigation Satellite system (BDS) and the European Galileo are currently under development for global operation. Therefore, in view of these new upcoming systems the research and development of GNSS receivers has been experiencing a new upsurge. In this article, the authors discuss the main functionalities of a GNSS receiver in view of BDS. While describing the main functionalities of a software-defined BeiDou receiver, the authors also highlight the similarities and differences between the signal characteristics of the BeiDou B1 open service signal and the legacy GPS L1 C/A signal, as in general they both exhibit similar characteristics. In addition, the authors implement a novel acquisition technique for long coherent integration in the presence of NH code modulation in BeiDou D1 signal. Furthermore, a simple phase-preserved coherent integration based acquisition scheme is implemented for BeiDou GEO satellite acquisition. Apart from the above BeiDou-specific implementations, a novel Carrier-to-Noise-density ratio estimation technique is also implemented in the software receiver, which does not necessarily require bit synchronization prior to estimation. Finally, the authors present a BeiDou-only position fix with the implemented software-defined BeiDou receiver considering all three satellite constellations from BDS. In addition, a true multi-GNSS position fix with GPS and BDS systems is also presented while comparing their performances for a static stand-alone code phase-based positioning.http://www.mdpi.com/1424-8220/14/11/22082BeiDou Navigation Satellite systemacquisitiontrackingsoftware-defined receivermulti-GNSS |
| spellingShingle | Mohammad Zahidul H. Bhuiyan Stefan Söderholm Sarang Thombre Laura Ruotsalainen Heidi Kuusniemi Overcoming the Challenges of BeiDou Receiver Implementation Sensors BeiDou Navigation Satellite system acquisition tracking software-defined receiver multi-GNSS |
| title | Overcoming the Challenges of BeiDou Receiver Implementation |
| title_full | Overcoming the Challenges of BeiDou Receiver Implementation |
| title_fullStr | Overcoming the Challenges of BeiDou Receiver Implementation |
| title_full_unstemmed | Overcoming the Challenges of BeiDou Receiver Implementation |
| title_short | Overcoming the Challenges of BeiDou Receiver Implementation |
| title_sort | overcoming the challenges of beidou receiver implementation |
| topic | BeiDou Navigation Satellite system acquisition tracking software-defined receiver multi-GNSS |
| url | http://www.mdpi.com/1424-8220/14/11/22082 |
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