ERROR ANALYSIS AND COMPUTATIONS OF WIND SPEED AND WIND DIRECTION FROM AIRCRAFT DOPPLER DATA

ERROR ANALYSIS AND COMPUTATIONS OF WIND SPEED AND WIND DIRECTION FROM AIRCRAFT DOPPLER DATA

The use of a piloted aircraft to determine the magnitude and direction of the wind speed vector involves the direct measurement and recording of several basic parameters, such as ground speed, drift angle and air speed from which the wind speed vector is computed trigonometrically. This paper descri...

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Bibliographische Detailangaben
Hauptverfasser: Durling,Marie, Engler,Nicholas, kahle,Donald
Format: Report
Sprache:eng
Schlagworte:
AIRSPEED
DOPPLER EFFECT
DRIFT
ERRORS
FLIGHT SPEEDS
GROUND SPEED
HIGH ALTITUDE
MATHEMATICAL ANALYSIS
RECONNAISSANCE AIRCRAFT
TRIGONOMETRY
WIND
WIND DIRECTION INDICATORS
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Zusammenfassung:The use of a piloted aircraft to determine the magnitude and direction of the wind speed vector involves the direct measurement and recording of several basic parameters, such as ground speed, drift angle and air speed from which the wind speed vector is computed trigonometrically. This paper describes the significant mathematical relationships among these basic parameters, their errors and the resultant errors in wind speed and wind direction. After development of the general error equations, examples are given using Aircraft APN 102 Doppler data from typical flights made by a high altitude reconnaissance aircraft. (Author)