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Application of Marquardt's Nonlinear Least Squares Algorithm to Free-Flight Yaw Data Analysis.

机译:marquardt非线性最小二乘算法在自由飞行偏航数据分析中的应用。

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Marquardt's algorithm is an imporved technique for the least squares estimation of nonlinear parameters. The present report describes the algorithm and documents a FORTRAN subroutine for carrying it out. A specific application of the subroutine is discussed in detail: fitting a complex yaw equation to data obtained from a Free Flight Range. An example is given in which the fitting process converged to the wrong answer without the algorithm and to the right answer with it.

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