5Hoff J C;Cook M V Aircraft parameter identificatiorl using an estimation-before modeling technique 1996:997.
6Kalandros M, Pao L Y o Controlling target estimate covari- arlce in centralized multisensor systems[C]: proc. American Control Conf. Philadelphia, PA, 1998:2749-2753 Klan- dros M, Pao L Y. Convariance control for maltisensor.