A Method for Calculating Wind Speed and Direction Based on Online Calibration of Airspeed Error
A simple on-line vacuum speed error calibration algorithm is presented to solve the problem that the wind direc-tion is greatly affected by the measurement error of vacuum speed based on the traditional wind triangle method.Firstly,the"wind triangle"model and its error model are introduced briefly.Based on the model of calculating error,the measure-ment error of vacuum speed is calibrated by two-position joint method,and the accuracy of wind direction calculation un-der maneuvering condition can be improved effectively after compensating the measurement error of vacuum speed.At last,the effectiveness of the proposed method is verified by actual flight test.