The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B7. Beijing 2008
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4. CONCLUSION
We have developed an adjustment model of quaternary arcs for
realizing an integrated spatiotemporal analysis for double
difference phase unwrapping. Because the double difference
phase unwrapping is generally an underdetermined ILS problem,
a priori information of unknown parameters is necessary for
getting solution. Under the assumption of a constant strain rate
of deformation, the variances of SOL rate differences are
deduced as in equation (9) to (12), and are incooperated into
the phase unwrapping solving using the LAMBDA method.
Further research may include more radiation arcs at a PS so as
to include more bearing spatial information in double difference
phase unwrapping.
ACKNOWLEDGEMENTS
This research is supported by Chinese nature science foundation
(Proj. No. 40674004) and Germany Baden-Württemberg
research scholarship in University of Stuttgart.
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