Phase noise filtering and phase unwrapping method based on unscented Kalman filter |
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| Authors: | Xianming Xie Yiming Pi |
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| Affiliation: | School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China |
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| Abstract: | This paper presents a new phase unwrapping algorithm based on the unscented Kalman filter(UKF) for synthetic aperture radar(SAR) interferometry.This method is the result of combining an UKF with path-following strategy and an omni-directional local phase slope estimator.This technique performs simultaneously noise filtering and phase unwrapping along the high-quality region to the low-quality region,which is also able to avoid going directly through the noisy regions.In addition,phase slope is estimated dir... |
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| Keywords: | phase unwrapping unscented Kalman filter (UKF) path-following strategy |
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