A complete theory of signal aperture radar (SAR) processing from phase-only
data is presented, for both analogue and coded raw signals and reference f
unctions. Appropriate processing architectures are presented as well as qua
lity indexes to judge performance of the selected coding. The analysis enco
mpasses both images and interferometric fringes for interferometry SAR (IFS
AR) application. Theoretical results are validated by a large number of exp
eriments, comparing the performance of the suggested coding levels, and the
ir combinations between raw and reference functions. Experiments are extend
ed until the comparison of final digital elevation models.