Ionospheric Considerations for Wide Area GPS Augmentation Systems
Ionospheric Considerations for Wide Area GPS Augmentation Systems
Ionospheric Considerations for Wide Area GPS Augmentation Systems
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Airborne Gravimetry• Need to measure gravity field at 10 -6 level• Cold atom gravimeter can measure acc plus gravity• X band or laser to decouple plat<strong>for</strong>m motion• Overfly region of interest• Water table monitoring• Homeland security• Resource discoveryoil & minerals27
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