Systems and methods for sub-aperture correlation based wavefront measurement in a thick sample and correction as a post processing technique for interferometric imaging to achieve near diffraction limited resolution are described. The coating includes an interlayer of porous fibrous silicon nitride having a density of between 85-98%. The system event handler identifies an action associated with the specified event. The selection circuit selects any one of the error signals to output the signal selected. The single layer, open weave patches are also utilized to reinforce other types of filament-based tank wall structures. In this structure, if portions of the gate wire or the data wire are disconnected, the portions overlapping the disconnected wire, the storage wire, and the redundant repair line are shorted to repair an open wire defect.