Xu Jin, Tao Xiao-feng, Zhang Ping. Coded MIMO Detection Based on Iterative Channel Soft Information[J]. Journal of Electronics & Information Technology, 2009, 31(1): 57-60. doi: 10.3724/SP.J.1146.2007.01202
Citation:
Ge Shi-Qi, Ding Ze-Gang, Chen Liang, Long Teng. A Mode Based Auto-adaptive Median Filtering Method for Interferometric Phase[J]. Journal of Electronics & Information Technology, 2012, 34(4): 917-922. doi: 10.3724/SP.J.1146.2011.00860
Xu Jin, Tao Xiao-feng, Zhang Ping. Coded MIMO Detection Based on Iterative Channel Soft Information[J]. Journal of Electronics & Information Technology, 2009, 31(1): 57-60. doi: 10.3724/SP.J.1146.2007.01202
Citation:
Ge Shi-Qi, Ding Ze-Gang, Chen Liang, Long Teng. A Mode Based Auto-adaptive Median Filtering Method for Interferometric Phase[J]. Journal of Electronics & Information Technology, 2012, 34(4): 917-922. doi: 10.3724/SP.J.1146.2011.00860
In order to improve the phase noise reduction effect and to avoid filtering useful phase jumps, this paper first investigates mode filtering algorithm and proposes a modified mode estimator based on shortest sub-interval seeking for interferometric phase. By further analysis of relationship between mode estimating parameter and phase resolution, an auto adaptive local phase center with variation of interferometric phase quality is constructed, based on which an adaptive median filtering method is presented. This method could overcome the edge blur problem caused by mode filter, and is also effective to avoid over filtering or under filtering caused by conventional spatial filter with uniform parameter. Meanwhile, it achieves better computation efficiency. Finally, experiments with simulated and real TerraSARX data are performed to testify the effectiveness of this method.
Xu Jin, Tao Xiao-feng, Zhang Ping. Coded MIMO Detection Based on Iterative Channel Soft Information[J]. Journal of Electronics & Information Technology, 2009, 31(1): 57-60. doi: 10.3724/SP.J.1146.2007.01202
Xu Jin, Tao Xiao-feng, Zhang Ping. Coded MIMO Detection Based on Iterative Channel Soft Information[J]. Journal of Electronics & Information Technology, 2009, 31(1): 57-60. doi: 10.3724/SP.J.1146.2007.01202