Atmosphere turbulence for low elevation angle reception is a noise source that is not well defined in existing systems using satellite navigation signals. For high precision aviation purposes atmosphere turbulence needs to be assessed to meet the future stringent requirements.
High precision receivers using open-loop mode data sampling at high sampling rate enables investigations of the characteristics of the noise and the multi-path signal errors through the determination of the refractive index structure constant C n 2. The main modulation of GPS signals in low-elevation measurements is attenuation and frequency shift due to ray bending. Whereas the presence of turbulence results in a spectral broadening of the signal. Analysis of the trends of the spectral mean slope for different frequency domains will be discussed in relation to the characteristics of atmosphere turbulence. Additionally we present results from phase-lock receivers loosing lock during strong perturbations.
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Høeg, P., Prasad, R., Borre, K. (2008). Impact of Atmosphere Turbulence on Satellite Navigation Signals. In: Re, E.D., Ruggieri, M. (eds) Satellite Communications and Navigation Systems. Signals and Communication Technology. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-47524-0_17
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DOI: https://doi.org/10.1007/978-0-387-47524-0_17
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