In-flight pitot-static calibration

US9285387B2 · kind B2 · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• John V. Foster · Williamsburg, US
• Kevin Cunningham · Longmont, US

Key dates

• Filing date: Dec 14, 2010
• Grant date: Mar 15, 2016
• Expiry date: May 24, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/50
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A GPS-based pitot-static calibration system uses global output-error optimization. High data rate measurements of static and total pressure, ambient air conditions, and GPS-based ground speed measurements are used to compute pitot-static pressure errors over a range of airspeed. System identification methods rapidly compute optimal pressure error models with defined confidence intervals.