“…However, when Kalman filters are computed via Riccati equations, some fundamental properties to guarantee their stability, as for example, Hermitian solutions, are no longer guaranteed (see for instance, [17] for more details). Although the computational and numerical issues have been studied for standard state-space systems for a long time, for MJLSs, only [15,18] have dealt with this kind of problem. These two works proposed array algorithms to compute the linear minimum mean square error estimator (LMMSE) for MJLSs, which provide more accuracy and numerical stability if compared with solutions on the basis of Riccati equations.…”