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Determine Whether GPS Altitude Lags Barometric Pressure and Accelerometer Sensors

Determine Whether GPS Altitude Lags Barometric Pressure and Accelerometer Sensors. Balloon Fest December 7, 2013 Team 26 Learning for Life School Group 3 – Wolves (Advanced). - Consumer GPS Receivers Lag User Movement When Displaying Latitude and

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Determine Whether GPS Altitude Lags Barometric Pressure and Accelerometer Sensors

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  1. Determine Whether GPS Altitude Lags Barometric Pressure and Accelerometer Sensors Balloon Fest December 7, 2013Team 26Learning for Life SchoolGroup 3 – Wolves(Advanced)

  2. - Consumer GPS Receivers Lag User Movement When Displaying Latitude and Longitude Position - Does GPS Altitude Also Lag Barometric Pressure and Acceleration Sensors When Compared to Actual Altitude? Balloon Fest December 7, 2013 Team 26 - LFLS Group 3 – Wolves (Advanced) Experiment Purpose

  3. - Move a NASA Small Satellites for Secondary Students (S4) Sensor Payload Vertically Very Rapidly - Record GPS 3-D Position, Barometric Pressure, and Y-Axis Acceleration Balloon Fest December 7, 2013 Team 26 - LFLS Group 3 – Wolves (Advanced) Experiment Procedure

  4. - S4 Sensor Payload Records GPS 3-D Position, Barometric Pressure, and Y-Axis Acceleration Once Each Second - Compare Times When Altitude Actually Changes vs. Altitude Reported by GPS, Barometric Pressure, and Accelerometer Sensors Balloon Fest December 7, 2013 Team 26 - LFLS Group 3 – Wolves (Advanced) Experiment Data Analysis

  5. Proof: GPS Altitude Lags!

  6. - S4 Sensor Payload Data Clearly Demonstrates that GPS Reported Altitude Does Lag Actual Altitude, As Well As Barometric Pressure and Vertical Acceleration Sensor Data Reporting by About 10 Seconds on Average - Barometric Pressure Is Still a Very Accurate, Timely, and Important Altitude Indicator! Balloon Fest December 7, 2013 Team 26 - LFLS Group 3 – Wolves (Advanced) Experiment Results

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