| 摘要 |
A navigation system includes a pressure sensor (105), a calibration module (110) in communication with the pressure sensor, and an altitude module (125) in communication with the calibration module (110). The calibration module is configured to determine a dynamic pressure proportionality coefficient based at least in part on a static pressure proportionality coefficient, a measured pressure value from the pressure sensor (105), and a velocity value. The altitude module (125) is configured to calculate a sensor-based altitude value based at least in part on the determined dynamic pressure proportionality coefficient. |
