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Estimation Method for InSAR Interferometric Phase Based on Generalized Correlation Steering Vector

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2 Author(s)
Guisheng Liao ; Lab. of Radar Signal Process., Xidian Univ., Xi''an, China ; Hai Li

We propose a new method, based on the generalized correlation steering vector, to estimate synthetic aperture radar interferometry (InSAR) interferometric phase. In this method the generalized correlation steering vector with a large coregistration error is determined according to the joint data vector. The generalized correlation steering vector is then used to estimate the InSAR interferometric phase. The method can simultaneously auto-coregister the synthetic aperture radar (SAR) images and reduce the interferometric phase noise. Theoretical analysis and computer simulation results show that the method can provide an accurate estimate of the terrain interferometric phase (interferogram), even if the coregistration error reaches one pixel.

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Aerospace and Electronic Systems, IEEE Transactions on  (Volume:46 ,  Issue: 3 )