Design and Development of a Low Cost Chirp Generator for Airborne Synthetic Aperture Radar

PIERS Online ◽  
2009 ◽  
Vol 5 (3) ◽  
pp. 269-272
Author(s):  
Yee Kit Chan ◽  
S. Y. Lim
Keyword(s):  
Synthetic Aperture Radar ◽  
Low Cost ◽  
Synthetic Aperture ◽  
Design And Development ◽  
Aperture Radar

scholarly journals RASF and DEDR-POCS Image Fusion through Multi-layer Perceptron in SAR Imagery Systems

2019 ◽  
pp. 20-26
Author(s):  
Israel Yañez-Vargas ◽  
Joel Quintanilla-Domínguez ◽  
Gabriel Aguilera-Gonzalez
Keyword(s):  
Synthetic Aperture Radar ◽  
Image Fusion ◽  
Low Cost ◽  
Synthetic Aperture ◽  
Discrete Wavelet ◽  
Multi Layer Perceptron ◽  
Robust Adaptive ◽  
Sar Imagery ◽  
Design Regularization ◽  
Aperture Radar

This paper presents a novel multi-layer perceptron (MLP) based image fusion technique, which fuses two synthetic aperture radar (SAR) images, obtained from the same spatial reflectivity map, acquired with a conventional low-cost fractional synthetic aperture radar (Fr-SAR) system, enhanced via two different methodologies. The first image is enhanced using the traditional descriptive experiment design regularization (DEDR) framework through the projection onto convex solution sets (POCS) method; the second image is enhanced with the DEDR framework by incorporating the robust adaptive spatial filtering (RASF) solution operator. This work describes a MLP based technique applied to the pixel level multi-focus fusion problem characterized by the use of image windows with the idea of reducing noise and determining which pixel is clearer between the two images. Experimental results show that the proposed novel method outperforms the discrete wavelet transform based most competing approach.

Synthetic aperture radar (SAR) imaging based on low-cost FMCW radar for mini-UAVs

2016 ◽  
Author(s):  
Yarleque Medina ◽  
Manuel Augusto ◽  
Alvarez Navarro ◽  
Sthefany Martinez Odiaga ◽  
Hansel Joussef ◽  
...  
Keyword(s):  
Synthetic Aperture Radar ◽  
Low Cost ◽  
Synthetic Aperture ◽  
Fmcw Radar ◽  
Sar Imaging ◽  
Aperture Radar

scholarly journals ESTIMATION OF DATA MEMORY CAPACITY FOR CIRCULARLY POLARIZED SYNTHETIC APERTURE RADAR ONBOARD UNMANNED AERIAL VEHICLE PLATFORM (CP-SAR UAV)

2011 ◽  
Vol 7 (1) ◽  
Author(s):  
P. Rizki Akbar ◽  
J.T. Sri Sumantyo ◽  
V.C.Koo ◽  
H.Kuzel
Keyword(s):  
Synthetic Aperture Radar ◽  
Unmanned Aerial Vehicle ◽  
Early Stage ◽  
Low Cost ◽  
Image Data ◽  
Memory Capacity ◽  
Synthetic Aperture ◽  
Circularly Polarized ◽  
Aerial Vehicle ◽  
Aperture Radar

Previously only linear polarization is widely used in the Synthetic Aperture Radar(SAR) system onboard spaceborne and airborne platforms. In such linearly polarized SAR(LP-SAR) systems, Faraday rotation in the ionosphere and platform posture will contribute tothe system noise. Therefore to improve this situation, currently a novel Circularly PolarizedSynthetic Aperture Radar (CP-SAR) sensor is developed in Microwave Remote SensingLaboratory, Chiba University. Moreover, from this research, a new backscattering data basedon circularly polarized wave in the remote sensing field can be obtained. As an early stage ofthe development of this CP-SAR sensor, we built an Unmanned Aerial Vehicle (UAV)platform for testing CP-SAR sensor capabilities. In this paper, we describe the novel CP-SARsensor and the method to design CP-SAR UAV especially in estimating the requirement ofdata memory capacity. Also a smaller antenna is possible to be implemented since the 3-dBaxial ratio on antenna characteristic becomes the main parameter in this new CP-SARtechnique. Hence, a compact CP-SAR sensor onboard a small and low cost spaceborneplatform yielding a high accuracy SAR image data can be realized in the near future.

Low-cost airborne synthetic aperture radar

1997 ◽  
Author(s):  
Samuel W. McCandless ◽  
Barton D. Huxtable ◽  
Christopher R. Jackson
Keyword(s):  
Synthetic Aperture Radar ◽  
Low Cost ◽  
Synthetic Aperture ◽  
Aperture Radar
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