Precise Point Positioning

Global Navigation Satellite System (GNSS) technology pervades a multitude of devices we use in our daily lives, from single frequency navigation devices on consumer grade smart-phones to multi-frequency receivers used as part of critical national infrastructure. Through the NOAA funded PPP SBIR project, ASTRA has demonstrated a framework for nowcasting positioning errors in single and dual-frequency GPS receivers using data from ground based GPS receivers across the United States. These maps quantify the positioning errors across the continental United States in real-time, while also providing a proxy measure of GNSS signal degradation as seen by ground based receivers.

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ROTI Map

*PLACEHOLDER* Global Navigation Satellite System (GNSS) technology pervades a multitude of devices we use in our daily lives, from single frequency navigation devices on consumer grade smart-phones to multi-frequency receivers used as part of critical national infrastructure. Through the NOAA funded PPP SBIR project, ASTRA has demonstrated a framework for nowcasting positioning errors in single and dual-frequency GPS receivers using data from ground based GPS receivers across the United States. These maps quantify the positioning errors across the continental United States in real-time, while also providing a proxy measure of GNSS signal degradation as seen by ground based receivers.

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Mitigate the impacts of space weather.

ASTRA can provide expertise in understanding space weather impacts on positioning errors and signal dropouts due to ionospheric scintillation.

 

ASTRA also maintains an archive of GNSS data to generate positioning error and ROTI maps for past space weather events. Fill out the contact form to learn more.