Passive acoustic synthetic aperture processing techniques

1992 ◽  
Vol 17 (1) ◽  
pp. 8-15 ◽  
Author(s):  
R. Williams ◽  
B. Harris
Keyword(s):  
Synthetic Aperture ◽  
Passive Acoustic ◽  
Processing Techniques

scholarly journals RFI Artefacts Detection in Sentinel-1 Level-1 SLC Data Based On Image Processing Techniques

Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 2919 ◽  
Author(s):  
Agnieszka Chojka ◽  
Piotr Artiemjew ◽  
Jacek Rapiński
Keyword(s):  
Image Processing ◽  
Synthetic Aperture Radar ◽  
Nearest Neighbor ◽  
Synthetic Aperture ◽  
Interferometric Synthetic Aperture Radar ◽  
Sar Images ◽  
Permanent Scatterers ◽  
Level 1 ◽  
Processing Techniques ◽  
Aperture Radar

Interferometric Synthetic Aperture Radar (InSAR) data are often contaminated by Radio-Frequency Interference (RFI) artefacts that make processing them more challenging. Therefore, easy to implement techniques for artefacts recognition have the potential to support the automatic Permanent Scatterers InSAR (PSInSAR) processing workflow during which faulty input data can lead to misinterpretation of the final outcomes. To address this issue, an efficient methodology was developed to mark images with RFI artefacts and as a consequence remove them from the stack of Synthetic Aperture Radar (SAR) images required in the PSInSAR processing workflow to calculate the ground displacements. Techniques presented in this paper for the purpose of RFI detection are based on image processing methods with the use of feature extraction involving pixel convolution, thresholding and nearest neighbor structure filtering. As the reference classifier, a convolutional neural network was used.

Signal processing techniques for ultrawideband synthetic aperture radar data

1999 ◽  
Author(s):  
Jeffrey Sichina ◽  
Lam H. Nguyen ◽  
Tuan T. Ton ◽  
Marc A. Ressler ◽  
Kenneth I. Ranney ◽  
...  
Keyword(s):  
Signal Processing ◽  
Synthetic Aperture Radar ◽  
Radar Data ◽  
Synthetic Aperture ◽  
Synthetic Aperture Radar Data ◽  
Processing Techniques ◽  
Signal Processing Techniques ◽  
Aperture Radar
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