Although the CFO estimate need not be accurate, it should lead to the correct CFO region.
Here, however, the CFO estimate need not be accurate as required in the proposed fuzzy MOE receiver, but it should indicate the correct CFO region.
The associated model itself (as opposed to the uncertainty estimate) need not necessarily be discarded, however, especially if it is a case of the profile being distorted by undersampling of the error distribution.
Even though the 1D margins look quite bell-shaped, the constraint makes the joint distribution extremely non-Gaussian, and for this reason the 2D margin of the MAP estimate need not correspond to the MAP estimates of the 1D or 2D margins, and does not in this case.
A Kalman filter is well known for its computational efficiency which results from the fact that only the most recent estimate need to be stored in order to refine the MMSE estimate of the unknown parameter of interest based on the new observations.
However, we selected clinical deterioration as our endpoint because we wanted a score that could estimate need for critical care intervention and therefore prevent morbidity, not just mortality.
