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Content Provider | IET Digital Library |
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Author | Chun, Wang Ming Feng, Zhang Jia Tao, Liu |
Abstract | The constant false alarm rate (CFAR) detection method based on multi-look polarisation whitening filter (MPWF) has not been obtained in the polarimetric synthetic aperture radar imagery when the texture variable obeys the Inverse Beta distribution. To solve the problem, a new CFAR detection method with analytical expression for false alarm rate is proposed. First, the probability density function (PDF) of the output via MPWF is derived based on the hypothesis of the texture variables obeying the Inverse Beta distribution in the product model. Secondly, the analytical expression of false alarm rate about detection threshold is obtained by integrating the PDF of MPWF output, and the procedure of the CFAR detection method is designed. Finally, the performance comparisons are made among the new method, Wishart CFAR detection algorithm and the two-parameter CFAR method via simulated and real data of AIRSAR. The results show that figure of merit of the new method is the highest and the new method gives the best performance in Inverse Beta distribution case. |
Starting Page | 5574 |
Ending Page | 5579 |
Page Count | 6 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 19, Oct (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2019/19 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.0377 |
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 | AIRSAR Data Analytical Expression CFAR Detection Method Computer Vision And Image Processing Technique Constant False Alarm Rate Detection Method Detection Threshold Filtering Method in Signal Processing Filtering Theory Geophysical Image Processing Geophysical Technique And Equipment Geophysics Computing Image Texture Instrumentation And Technique For Geophysical, Hydrospheric And Lower Atmosphere Research Inverse Beta Distribution MPWF Output Optical, Image And Video Signal Processing Polarimetric Synthetic Aperture Radar Imagery Polarisation Multilook Polarisation Whitening Filter Probability Density Function Probability Theory Radar Detection Radar Equipment Radar Imaging Radar Polarimetry Remote Sensing by Radar Statistical Distribution Statistics Stochastic Linearised SCUC Synthetic Aperture Radar System And Application Texture Variable |
Content Type | Text |
Resource Type | Article |
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