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Erratum: Borejko, T., et al. NaviSoC: High-Accuracy Low-Power GNSS SoC with an Integrated Application Processor. <i>Sensors</i> 2020, <i>20</i>, 1069.

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GNSS-ISE: Instruction Set Extension for GNSS Baseband Processing.

Krzysztof Marcinek1,2, Witold A Pleskacz1

  • 1Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, ul. Koszykowa 75, 00-662 Warsaw, Poland.

Sensors (Basel, Switzerland)
|January 18, 2020
PubMed
Summary

Researchers designed a new instruction set extension for Global Navigation Satellite System (GNSS) baseband processing. This innovation enables multi-frequency, multi-constellation GNSS receivers in low-cost devices like IoT sensors.

Keywords:
GNSS receiverISESDRinstruction set extensionmulti-constellationmulti-frequencysoftware defined radio

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Area of Science:

  • Electrical Engineering
  • Computer Engineering
  • Signal Processing

Background:

  • Current Global Navigation Satellite System (GNSS) receiver implementations have limitations.
  • Optimization is needed for efficient GNSS baseband processing in diverse applications.

Purpose of the Study:

  • To design and evaluate a novel instruction set extension (ISE) for GNSS baseband processing.
  • To enhance multi-channel processing capabilities for GNSS receivers.
  • To enable integration into low-cost, embedded systems for mass-market adoption.

Main Methods:

  • Development of a versatile instruction set extension (GNSS-ISE) using an analytical approach.
  • Extensive simulation using PC software.
  • Field-programmable gate array (FPGA) emulation for hardware validation.

Main Results:

  • Successful design and validation of the GNSS-ISE.
  • Integration into a novel, integrated, multi-frequency, multi-constellation microcontroller.
  • Demonstrated feasibility for embedded microprocessor systems performing GNSS baseband processing.

Conclusions:

  • The developed GNSS-ISE is feasible for embedded systems.
  • It enables efficient multi-frequency and multi-constellation GNSS baseband processing.
  • This fosters the adoption of advanced GNSS receivers in mass-market devices like IoT.