Optics and Precision Engineering, Volume. 17, Issue 8, 1978(2009)

Flight parameter computing platform under wind field environment

JI Yong1...2,*, LI Ming1,2, JIA Hong-guang1, CHEN Juan1, WANG Yi-fan1 and CHEN Chang-qing1 |Show fewer author(s)
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  • 2[in Chinese]
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    Flight parameter computing platforms are important supporting technologies in the aircraft development process.In order to accurately simulate the wind model and calculate the flight parameters,a simulation modeling method for a flight parameter simulation platform under wind field environments is established.Based on the several influence factors of the flight,some mathematical models of the flight parameter simulation platform is established.Then, the Simulink toolbox in the Matlab is used to establish the model to implement the complex kinetic equations based on the principles of hierarchy and C MEX S-function.After the models are established, these models are encapsulated for several subsystems and the flight parameter computing platform based on a unified interface is assembled.The simulation tests,including the performance test of a certain gliding aircraft and the wind influence test of a certain uncontrolled aircraft,prove that the computing capability of the platform can obtain a calculating step of 1 ms.The comparion on the simulation and the field test data of a certain uncontrolled aircraft shows that the relative deviation of range is 0.44%,the relative deviation of maximal altitude is 1.8%.Taking QJ 1997-90 as a reference standard,it is demonstrated that the platform scheme is resonable and reliable,which meets the engineering accuracy requirement.

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    JI Yong, LI Ming, JIA Hong-guang, CHEN Juan, WANG Yi-fan, CHEN Chang-qing. Flight parameter computing platform under wind field environment[J]. Optics and Precision Engineering, 2009, 17(8): 1978

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    Paper Information

    Category:

    Received: Apr. 9, 2009

    Accepted: --

    Published Online: Oct. 28, 2009

    The Author Email: Yong JI (jy262002@eamil.jlu.edu.cn)

    DOI:

    CSTR:32186.14.

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