GNSS (all systems)

December 28, 2022

LEO Orbit Modeling Software, SimORBIT, Allows for Accurate Lab Testing and Verification, A First

As interest in low Earth orbit (LEO) satellites grows, so has the need for accurate modeling of the environment for precise, realistic GNSS/PNT testing. This, however, is a difficult task. LEO satellites are much closer to the Earth than MEO satellites, and that means they must endure different gravitational and atmospheric impacts that are difficult to replicate in a lab.

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By Renee Knight
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December 9, 2022

Adopting Bicomplex Numbers for GNSS Meta-Signal Processing

A 4D extension of complex numbers, bicomplex numbers allow for a compact representation of GNSS meta-signals with components from two different frequencies. Acquisition and tracking algorithms are obtained from the bicomplex signal representation, giving it potential for effective dual-frequency GNSS signal processing. 

DANIELE BORIO, EUROPEAN COMMISSION, JOINT RESEARCH CENTRE (JRC)

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By Inside GNSS
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