The Interferometric SAR Processor (ISP) package encompasses a full range of algorithms required for the generation of interferograms, height maps, coherence maps, and differential interferometric products. The ISP allows:

• baseline estimation from orbit data
• precision registration of interferometric image pairs
• interferogram generation (including common spectral band filtering)
• removal of flat Earth phase trend
• estimation of interferometric correlation
• adaptive filtering of interferograms
• phase unwrapping
• precision estimation of interferometric baselines from ground control points
• generation of topographic height
• image rectification and interpolation of interferometric height and slope maps

The flow chart for a typical interferometric processing is shown beside. Quality control
programs complement the main processing sequence.