6.2 Linear Observation Models
If the observation equation is linear, assume that the observation equation can be written as
where H is an nz × nx deterministic matrix that is independent of xn and of time. Therefore, we can write
(6.8)
Assuming that the observation noise wn is a zero mean process, it follows immediately that (5.39) and (5.40) reduce to
and
(6.10)
where is the observation noise covariance matrix.
Finally, using (6.7) and (6.9) in (5.57) we obtain
(6.11)
This reduces to
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