DiscreteLQEstimatorGains
DiscreteLQEstimatorGains[ssm,{w,v},τ] gives the optimal discrete-time estimator gain matrix with sampling period τ for the continuous-time StateSpaceModel ssm, with process and measurement noise covariance matrices w and v.
DiscreteLQEstimatorGains[{ssm,sensors},{w,v},τ] specifies sensors as the noisy measurements of ssm.
DiscreteLQEstimatorGains[{ssm,sensors,dinputs},{w,v},τ] specifies dinputs as the deterministic inputs of ssm.
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