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김건식,박근범,김정한,이상준,송용규,Kim, Keonsik,Park, Kunbum,Kim, Junghan,Lee, Sangjun,Song, Yongkyu 항공우주시스템공학회 2010 항공우주시스템공학회지 Vol.4 No.1
In the hot summer manual spray work for plants would be the hardest one among the agricultural field works. Besides the physical load the possible toxication would strongly ask a way to do the job on behalf of human. Although an aircraft with sprayer could be a good candidate, the manned airplanes do not play proper roles in our country because of field geometry. Today, unmanned helicopter as expensive as 200,000 dollars can do the job with high risk of control. Therefore safe and cheap air vehicle with sprayer, if developed, could be a great help to agriculture.
김정한 ( Jung Han Kim ),박근범 ( Keun Bum Park ),송용규 ( Yong Kyu Song ),황익호 ( Ick Ho Hwang ),최동균 ( Dong Kyun Choi ) 한국항공운항학회 2010 한국항공운항학회지 Vol.18 No.3
This paper deals with the precise parameter estimation of an air vehicle without a priori information. First, Recursive Least Squares technique, which is an equation error method and does not require any a priori information, is applied and then the extended Kalman filter is used to tune parameters more precisely. To show the performance, a nonlinear longitudinal missile model is simulated and the parameters are estimated. The results show that this consecutive application of the techniques gives a very good estimation performance.