Patent ID: 7561067

Claim:
A measurement system for an aircraft, comprising: a Doppler anemometer for simultaneously measuring airflow speeds in plural points of a beam irradiation direction at the same time; an inertial data measurement device which measures the movement information and positional information of the aircraft, and said Doppler anemometer provides means to measure the three-axis components of the airspeed of the aircraft, the three-axis components of the wind speed currently encountered by the aircraft, and the wind speed distribution ahead of the aircraft at the same time, by changing the beam irradiation direction of the Doppler anemometer in a time series, wherein the measurement accuracy of the device is improved by providing means for obtaining information relating to the attitude angles, the attitude angular velocities, and the ground speed of the aircraft during measurement, from the inertial data measurement device, and for correcting the measurement values from the Doppler anemometer with said information.