Quantitative Evaluation of Real-Time Synthetic Aperture Acoustic Images

1982 ◽  
pp. 767-776
Author(s):  
D. K. Peterson ◽  
R. Baer ◽  
K. Liang ◽  
S. D. Bennett ◽  
B. T. Khuri-Yakub ◽  
...  
Keyword(s):  
Real Time ◽  
Quantitative Evaluation ◽  
Synthetic Aperture ◽  
Acoustic Images

scholarly journals Utilisation of CryoSat-2 SAR altimeter in operational ice charting

2016 ◽  
Vol 10 (1) ◽  
pp. 121-131 ◽  
Author(s):  
E. Rinne ◽  
M. Similä
Keyword(s):  
Synthetic Aperture Radar ◽  
Real Time ◽  
Training Data ◽  
Synthetic Aperture ◽  
First Year ◽  
Success Rates ◽  
Hit Rate ◽  
Snow Conditions ◽  
Simple Product ◽  
Barents And Kara Seas

Abstract. We present methods to utilise CryoSat-2 (CS-2) synthetic aperture radar (SAR) mode data in operational ice charting. We compare CS-2 data qualitatively to SAR mosaics over the Barents and Kara seas. Furthermore, we compare the CS-2 to archived operational ice charts. We present distributions of four CS-2 waveform parameters for different ice types as presented in the ice charts. We go on to present an automatic classification method for CS-2 data which, after training with operational ice charts, is capable of determining open ocean from ice with a hit rate of  >  90 %. The training data are dynamically updated every 5 days using the most recent 15 days of CS-2 data and operative ice charts. This helps the adaption of the classifier to the evolving ice/snow conditions throughout winter. The classifier is also capable of detecting three different ice classes (thin and thick first-year ice as well as old ice) with success rates good enough for the output to be usable to support operational ice charting. Finally, we present a near-real-time CS-2 product just plotting the waveform characteristics and conclude that even such a simple product is usable for some of the needs of ice charting.

Compact acousto-optic system for real-time synthetic aperture radar image formation

1998 ◽  
Author(s):  
Michael W. Haney ◽  
Marc P. Christensen ◽  
Robert R. Michael, Jr. ◽  
Peter A. Wasilousky ◽  
Dennis R. Pape
Keyword(s):  
Synthetic Aperture Radar ◽  
Real Time ◽  
Image Formation ◽  
Synthetic Aperture Radar Image ◽  
Radar Image ◽  
Synthetic Aperture ◽  
Optic System ◽  
Aperture Radar

scholarly journals SARUS: A synthetic aperture real-time ultrasound system

2013 ◽  
Vol 60 (9) ◽  
pp. 1838-1852 ◽  
Author(s):  
J. A. Jensen ◽  
Hans Holten-Lund ◽  
R. T. Nilsson ◽  
M. Hansen ◽  
U. D. Larsen ◽  
...  
Keyword(s):  
Real Time ◽  
Synthetic Aperture ◽  
Ultrasound System

scholarly journals Real-Time Spaceborne Synthetic Aperture Radar Float-Point Imaging System Using Optimized Mapping Methodology and a Multi-Node Parallel Accelerating Technique

Sensors ◽  
2018 ◽  
Vol 18 (3) ◽  
pp. 725 ◽  
Author(s):  
Bingyi Li ◽  
Hao Shi ◽  
Liang Chen ◽  
Wenyue Yu ◽  
Chen Yang ◽  
...  
Keyword(s):  
Synthetic Aperture Radar ◽  
Real Time ◽  
Imaging System ◽  
Synthetic Aperture ◽  
Aperture Radar

scholarly journals Implementation of real-time duplex synthetic aperture ultrasonography

2015 ◽  
Author(s):  
Martin Christian Hemmsen ◽  
Lee Lassen ◽  
Thomas Kjeldsen ◽  
Jesper Mosegaard ◽  
Jorgen Arendt Jensen
Keyword(s):  
Real Time ◽  
Synthetic Aperture
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