Effect analysis of the arthemitic code on some single baseline phase unwrapping techniques

Phase unwrapping is a key step of the inSAR interferogram processing. This process is used to reconstruct 3D presentation of the scanned surface called digital elevation model from the measured phase. Several phase unwrapping algorithms have been proposed to solve the path-depending problem of the basic integration process. Transmitting interferograms from satellite to earth station for treatment purpose such as the phase unwrapping is also a big challenge; almost channel capacities are limited and cannot support the large size of the surface data. For these purposes, the use of encoding and compression techniques to transmit the interferograms is unavoidable. In this paper, we analyze the effect of the arithmetic code on some pioneers phase unwrapping techniques. The chosen methods are implemented and tested for real inSAR data provided by ESA ERS-1, and compared according to relevant metrics.