Triple-Band Automotive GNSS/INS Using Novel Silicon Photonic Optical Gyroscope and Custom Positioning Engine

Mike Horton and YuDan Yi

Abstract: The pace of innovation in low-cost, high-precision GNSS for automotive applications is rapidly accelerating. Just two years ago, the first automotive-grade, dual-band (L1+L2 and L1+L5) GNSS receivers were introduced, and in 2021 the first triple band (L1+L2+L5) automotive grade receiver has launched. The architecture and performance of a triple-band GNSS positioning engine running on the ST Microelectronics TeseoV automotive GNSS chipset is presented. In addition, due to the global nature of the automotive market, sparse global base-station data coupled with PPP-AR style algorithms are very desirable in automotive and autonomous automotive applications. The presented positioning engine leverages the chipset's triple frequency operation to deliver decimeter accurate results while utilizing sparsely spaced global GNSS correction data. This paper reports results under static and driving conditions for triple-band operation, and it demonstrates the benefits of triple band operation in terms of accuracy, convergence speed, and correction network density.
Published in: Proceedings of the 34th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2021)
September 20 - 24, 2021
Union Station Hotel
St. Louis, Missouri
Pages: 1 - 21
Cite this article: Horton, Mike, Yi, YuDan, "Triple-Band Automotive GNSS/INS Using Novel Silicon Photonic Optical Gyroscope and Custom Positioning Engine," Proceedings of the 34th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2021), St. Louis, Missouri, September 2021, pp. 1-21. https://doi.org/10.33012/2021.17877
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