Journal of Systems Engineering and Electronics ›› 2024, Vol. 35 ›› Issue (4): 874887.doi: 10.23919/JSEE.2023.000170
• DEFENCE ELECTRONICS TECHNOLOGY • Previous Articles
Received:
20230111
Accepted:
20240102
Online:
20240818
Published:
20240806
Contact:
Yong WANG
Email:caor@hit.edu.cn;wangyong6012@hit.edu.cn
About author:
Supported by:
Rui CAO, Yong WANG. Novel method for extraction of ship target with overlaps in SAR image via EM algorithm[J]. Journal of Systems Engineering and Electronics, 2024, 35(4): 874887.
Table 2
Parameters of EM algorithm and confidence ellipse for simulated data in the case of multiple IPPs"
Cluster  Eigenvalue  Axis length of ellipse  Eigenvector  
1  405.0  49.25  253.98  
2  716.0  65.50  364.73 
Table 3
Parameters of EM algorithm and confidence ellipse for simulated data in the case of multiple overlapping targets"
Cluster  Eigenvalue (×10^{3})  Axis length of ellipse  Eigenvector  
1  1.02  2.91  78.15  132.04  
2  0.81  6.83  69.45  202.34 
Table 5
Parameters of EM algorithm and confidence ellipse for real measured data in the case of multiple IPPs"
Cluster  Eigenvalue (×10^{3})  Axis length of ellipse  Eigenvector  
1  16.63  463.39  9.98  52.69  
2  6.58  324.47  6.28  44.09 
Table 6
Parameters of EM algorithm and confidence ellipse for real measured data in the case of multiple overlapping targets"
Cluster  Eigenvalue  Axis length of ellipse  Eigenvector  
1  21.09  219.78  11.24  36.29  
2  52.74  323.70  17.78  44.04 
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