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Measurements of Signal Delays in Software Defined Radio with Use of GNSS Modules

Measurements of Signal Delays in Software Defined Radio with Use of GNSS Modules AbstractIn the work a method of latency measurement in software defined radio (SDR) is proposed and validated. The test setup uses customer grade GNSS modules as reference time sources and enables relative delay calculation between signals received directly and those bypassed through SDR platform. The method is hardware agnostic in a sense, that it does not involve any custom software or hardware modifications. Tests that compare reported carrier-to-noise ratio and positioning errors were performed to prove functionality of such system. Additionally, authors measured several gnuradio blocks with respect to their impact on total latency introduced into signal path. All tests were performed on a bladeRF low-cost RF front-end. Minimum observed latency for the signal was below 10 ms. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual of Navigation de Gruyter

Measurements of Signal Delays in Software Defined Radio with Use of GNSS Modules

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References (6)

Publisher
de Gruyter
Copyright
© 2019 Oskar Mężyk et al., published by Sciendo
ISSN
1640-8632
eISSN
2300-6633
DOI
10.1515/aon-2019-0010
Publisher site
See Article on Publisher Site

Abstract

AbstractIn the work a method of latency measurement in software defined radio (SDR) is proposed and validated. The test setup uses customer grade GNSS modules as reference time sources and enables relative delay calculation between signals received directly and those bypassed through SDR platform. The method is hardware agnostic in a sense, that it does not involve any custom software or hardware modifications. Tests that compare reported carrier-to-noise ratio and positioning errors were performed to prove functionality of such system. Additionally, authors measured several gnuradio blocks with respect to their impact on total latency introduced into signal path. All tests were performed on a bladeRF low-cost RF front-end. Minimum observed latency for the signal was below 10 ms.

Journal

Annual of Navigationde Gruyter

Published: Dec 1, 2019

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