Guoxiang Gu, Xi-Ren Cao, Hesham Badr. Generalized LQR control and Kalman filtering with relations to computations of inner-outer and spectral factorizations. In American Control Conference, ACC 2005, Portland, OR, USA, 8-10 June, 2005. pages 2269-2274, IEEE, 2005. [doi]
Abstract is missing.