Atmospheric data and disturbance wind estimation method based on flight data
A technology of atmospheric data and flight data, applied in computing, civil aviation safety technology and flight data application, reckoning or counting field, can solve the problem of not reflecting the real characteristics of disturbance wind, and achieve the effect of improving state estimation accuracy and modeling accuracy
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[0017] The technical solution of the invention will be described in detail below in conjunction with the accompanying drawings.
[0018] The atmospheric data and disturbance wind estimation method based on flight data disclosed in this application, such as figure 1 As shown, there are three major steps.
[0019] Step 1: Preprocess the flight record data, and preliminarily estimate the true airspeed, angle of attack, prevailing wind and turbulence parameters. Selecting the time series of flight data includes: triaxial acceleration a=[a x ,a y ,a z ] T ;Three-axis angular velocity [p,q,r] T ;Roll, pitch and yaw angles [φ,θ,ψ] T ; Ground speed V G =[V Gx ,V Gy ,V Gz ] T ;recorded value of angle of attack Mach number M; ambient temperature T. The process of preliminarily estimating the true airspeed, angle of attack, prevailing wind and turbulence parameters includes three steps from step 1-A to step 1-C.
[0020] Step 1-A: Estimate the initial value of the true air...
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