The first problem for direct thrust control is thrust estimation.A wrapper algorithm
which reduces the computational complexity and also enhances the model generalization performance
was proposed based on least squares support vector regression machine.In addition
as a surrogate of traditional covariance method
QR decomposition was utilized to build sparse model strengthening the numerical stability.Finally
a thrust estimator design was applied to validate the effectiveness and feasibility of the proposed feature selection algorithm and sparse model using QR decomposition.