True airspeed reconstruction strategy for unmanned aerial vehicle
A machine vacuum and strategy technology, which is applied in the field of aircraft flight control system, can solve the problems of less technical involvement and achieve the effect of ensuring effectiveness
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[0020] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated.
[0021] The reconstruction strategy of the true air speed of the UAV in the present invention includes obtaining the static temperature of the atmosphere and obtaining the Mach number, and according to the formula Calculate the true speed of the UAV, in the formula, V t is the true air speed, T s is the static temperature of the atmosphere, and M is the Mach number, including the following two situations:
[0022] When the Mach number fails, the Mach number is reconstructed according to the GPS east speed, north speed, sky speed and GPS altitude:
[0023] M = V 2 ...
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