diff options
Diffstat (limited to 'apps/systemlib/airspeed.h')
-rw-r--r-- | apps/systemlib/airspeed.h | 69 |
1 files changed, 34 insertions, 35 deletions
diff --git a/apps/systemlib/airspeed.h b/apps/systemlib/airspeed.h index b1beb79ae..def53f0c1 100644 --- a/apps/systemlib/airspeed.h +++ b/apps/systemlib/airspeed.h @@ -48,43 +48,42 @@ __BEGIN_DECLS -/** - * Calculate indicated airspeed. - * - * Note that the indicated airspeed is not the true airspeed because it - * lacks the air density compensation. Use the calc_true_airspeed functions to get - * the true airspeed. - * - * @param pressure_front pressure inside the pitot/prandl tube - * @param pressure_ambient pressure at the side of the tube/airplane - * @param temperature air temperature in degrees celcius - * @return indicated airspeed in m/s - */ -__EXPORT float calc_indicated_airspeed(float pressure_front, float pressure_ambient, float temperature); + /** + * Calculate indicated airspeed. + * + * Note that the indicated airspeed is not the true airspeed because it + * lacks the air density compensation. Use the calc_true_airspeed functions to get + * the true airspeed. + * + * @param total_pressure pressure inside the pitot/prandtl tube + * @param static_pressure pressure at the side of the tube/airplane + * @return indicated airspeed in m/s + */ + __EXPORT float calc_indicated_airspeed(float differential_pressure); -/** - * Calculate true airspeed from indicated airspeed. - * - * Note that the true airspeed is NOT the groundspeed, because of the effects of wind - * - * @param speed current indicated airspeed - * @param pressure_ambient pressure at the side of the tube/airplane - * @param temperature air temperature in degrees celcius - * @return true airspeed in m/s - */ -__EXPORT float calc_true_airspeed_from_indicated(float speed, float pressure_ambient, float temperature); + /** + * Calculate true airspeed from indicated airspeed. + * + * Note that the true airspeed is NOT the groundspeed, because of the effects of wind + * + * @param speed_indicated current indicated airspeed + * @param pressure_ambient pressure at the side of the tube/airplane + * @param temperature_celsius air temperature in degrees celcius + * @return true airspeed in m/s + */ + __EXPORT float calc_true_airspeed_from_indicated(float speed_indicated, float pressure_ambient, float temperature_celsius); -/** - * Directly calculate true airspeed - * - * Note that the true airspeed is NOT the groundspeed, because of the effects of wind - * - * @param pressure_front pressure inside the pitot/prandl tube - * @param pressure_ambient pressure at the side of the tube/airplane - * @param temperature air temperature in degrees celcius - * @return true airspeed in m/s - */ -__EXPORT float calc_true_airspeed(float pressure_front, float pressure_ambient, float temperature); + /** + * Directly calculate true airspeed + * + * Note that the true airspeed is NOT the groundspeed, because of the effects of wind + * + * @param total_pressure pressure inside the pitot/prandtl tube + * @param static_pressure pressure at the side of the tube/airplane + * @param temperature_celsius air temperature in degrees celcius + * @return true airspeed in m/s + */ + __EXPORT float calc_true_airspeed(float total_pressure, float static_pressure, float temperature_celsius); __END_DECLS |