Phase to Height conversion (InSAR operator) | ![]() |
This operator converts the unwrapped interferometric phase to the heights in the radar coded system. This functionality is sometimes referred to as "slant-to-height" conversion.
Implementation is performed following the Schwabisch method, that uses polynomials to compare the actual phase with the flat earth (reference) phase.
The Schwabisch method, is a fast method that yields the radar coded heights. It builds on the idea to first compute the reference phase at a number of discrete heights and then to compare the actual phase from the interferogram with these pre-computed values to determine the height.
An obstacle with this method is that the interferograms that are used as input do not contain the reference phase anymore, so that has to be pre-computed and included in the height-estimation procedure.
Unwrapped interferometric product.
The height estimated from the unwrapped interferogram. The heights are stored meters, while 0.0 height indicates the problem with unwrapping.
(More details on algorithmic implementation COMING SOON!)