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《Transducer and Microsystem Technologies》 2006-05
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Application of pseudoinverse matrix in flush airdata sensing system

ZHENG Cheng-jun~1,LU Yu-ping~1,CHEN Feng~2(1.College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;2.Navy Troop 92419 of PLA,Xingcheng 125106,China)  
The application of pseudoinverse matrix in the simplified algorithm of flush airdata sensing(FADS) system is studied,an improved algorithm based on Moore-Penrose pseudoinverse matrix is presented for calculating the dynamic pressure,static pressure and calibration parameter,and its convergence is analyzed.The numerical validation of the algorithm is given by using Matlab.The results of the validation show that the improved algorithm is definitely convergent.It doesn't include the calculation of inverse matrix during the iteration,it takes only 70 % time to reach the same precision comparing to the original algorithm.The improved algorithm can meet the requirements of the system in precision,reliability and real-time.
【Fund】: 国家“863”计划资助项目(2003AA755021)
【CateGory Index】: TP212
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