Phase to elevation vs phase to height

Microwave Toolbox
6

Please take a look at this chapter,

image

Source : http://www.esa.int/esapub/tm/tm19/TM-19_ptB.pdf

In the following post, I explained how to create DEM,

Source of the post

And in the following, the difference between SRTM and DEM is created form S-1,

Source of the post