Which of the following is an SBAS?

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Multiple Choice

Which of the following is an SBAS?

Explanation:
An SBAS provides satellite-based corrections and integrity information to improve the accuracy and reliability of GNSS signals. WAAS, the Wide Area Augmentation System, is the specific SBAS developed for North America, broadcasting differential corrections and integrity data to GPS receivers. The other options are individual navigation systems or constellations (GLONASS and GPS are GNSS constellations, IRNSS/NavIC is India's regional system) but they are not augmentation systems. So WAAS is the SBAS.

An SBAS provides satellite-based corrections and integrity information to improve the accuracy and reliability of GNSS signals. WAAS, the Wide Area Augmentation System, is the specific SBAS developed for North America, broadcasting differential corrections and integrity data to GPS receivers. The other options are individual navigation systems or constellations (GLONASS and GPS are GNSS constellations, IRNSS/NavIC is India's regional system) but they are not augmentation systems. So WAAS is the SBAS.

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