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Content Provider | IET Digital Library |
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Author | Hui, Yu Wenying, Wang Long, Zhuang Wanming, Lei Xin, Nie Pin, Li |
Abstract | Based on the study of existed least-squares and weighted least-squares phase unwrapping methods, an improved weighted least-squares algorithm based on unwrapping phase error compensation is proposed. First, the conventional weighted least-squares method is used to get the initial result of phase unwrapping. Then the unwrapping result is optimised by iterative compensation of phase unwrapping error. In addition, for the reasonable selection of the times of iteration, an iterative mechanism is designed to avoid the redundant or insufficient compensation caused by too many iterative times and too few. Compared with the traditional weighted least-square method, by using the proposed method, the global influence of phase noise is constrained by weighted processing, and meanwhile, the accuracy of phase unwrapping is greatly improved by iterative error compensation. The simulation results confirm the superiority of the proposed method. |
Starting Page | 6471 |
Ending Page | 6474 |
Page Count | 4 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 20, Oct (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/20 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0373 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2019-05-30 |
Access Restriction | Open |
Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
Subject Keyword | Error Compensation Existed Least-squares Interpolation And Function Approximation Iterative Compensation Iterative Error Compensation Iterative Method Least Squares Approximation Least-square Method Least-squares Algorithm Least-squares Method Least-squares Phase Unwrapping Method Numerical Analysis Optical, Image And Video Signal Processing Phase Error Compensation Phase Noise Phase Unwrapping Error Radar Equipment Radar Imaging Synthetic Aperture Radar System And Application Unwrapping Result Weighted Processing |
Content Type | Text |
Resource Type | Article |
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