Electronics Optics & Control, Volume. 28, Issue 8, 106(2021)
Enchantment of Vector Tracking Loop Performance Under Signal Challenging Environments
Global Navigation Satellite System (GNSS) has become the most popular apparatus for generating navigation and positioning informationand ground vehiclessmartphones et al all rely on GNSS for obtaining high-precision navigation and positioning information.Howeverunder complex city environmentsGNSS signals are often blocked by the surroundingsand thus the GNSS receiver cant obtain adequate signalswhich may lead to big positioning errors or no output of navigation solutions.Vector Tracking Loops (VTL) use a Kalman filter to estimate the navigation and positioning solutionsand VTL is able to output positioning information with only one visible satellite.Howeverthe positioning errors will diverge over time.In order to improve the VTL performance under signal challenging environmentsthis paper proposes an altitude information aided VTL methodand the model is given.Field tests show that the positioning errors are obviously reduced in the two-minute experiment with the aid of altitude information.
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FAN Yue, ZHOU Hui. Enchantment of Vector Tracking Loop Performance Under Signal Challenging Environments[J]. Electronics Optics & Control, 2021, 28(8): 106
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Received: Dec. 13, 2020
Accepted: --
Published Online: Aug. 16, 2021
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