Topic Selection Description


 

Topic:

 
 

Radar Image Processing

 

 
Description:  
 

This research investigates methods to improve the clarity of radar generated images.

   

Motivation:

 
 

The concept that images could be generated from radar signals has been around for years.  However, only recent advancements in computer processing power have allowed for these theories to be tested.  Radar imaging has many applications and is just in its early stages of development.  It is currently being applied to map objects in 3-D and to see through walls.  These applications of radar imaging tend to experience interference and research is being done to improve image clarity.

   

References:

 
 

Mahafza, Bassem R. Introduction to Radar Analysis. New York: C R C P LLC, 1998.
[This book gives an introduction to radar analysis and how the signals from the radar are processed.  It includes basic mathematical algorithms to generate simple images from radar input.]

 

 

 

Mahafza, Bassem R. Radar Systems Analysis and Design Using Matlab. 2nd ed. Upper Saddle River: Chapman & Hall/CRC, 2005.
[This book gives a detail approach to mathematically represent images from radar input using vector analysis and graphing algorithms in MATLAB.]

   
 

Baraniuk, R. Steeghs, P. Compressive Radar Imaging. Radar Conference, 2007 IEEE, April 2007, pp.128-133.
http://www.dsp.ece.rice.edu/CS/CS-radar-07.pdf
[These authors introduce a new method that will greatly improve radar systems.  However, there findings are only theoretical because their methods are beyond the limits of current technology and expensive to implement.]

   
 

Anthony T. S. Ho, W. H. Tham, K. S. Low. Through-wall radar image reconstruction based on time-domain transient signals in the presence of noise. IEEE International Geoscience and Remote Sensing Symposium, 2005 (GARSS '05). , Vol. 6, pp. 4271- 4274.
http://epubs.surrey.ac.uk/cgi/viewcontent.cgi?article=1040&context=publcomp2
[This paper discusses the problem of accurately seeing through the wall in the presence of noise.  The authors come to the conclusion that using a series of equations and extra receivers that some noise can be filtered.]

   
 

Hunt, Allan R. A wideband imaging radar for through-the-wall surveillance. Proceedings of the SPIE, Volume 5403, 2004 pp. 590-596.
http://www.akelainc.com/pdf_files/SPIE0404.pdf
[This paper implements a through-the-wall surveillance system.  However, the paper concludes that there are many limitations still to conquer, such as processing speed and image clarity. ]

   
 

Hayden J. Callow. Signal Processing for Synthetic Aperture Sonar Image Enhancement. PhD thesis, Department of Electrical and Computer Engineering, University of Canterbury, 2003.
http://www.elec.canterbury.ac.nz/research/acoustics/pubs/theses/Callow_thesis_2003.pdf
[This PhD thesis studies many techniques used in radar image processing that improve imaging and attempts to apply them to improve under water radar (sonar).  This is a very mathematical approach.]

   
  Benitz, G.R. High-definition vector imaging for synthetic aperture radar. Thirty-First Asilomar Conference on Signals, Systems & Computers, Vol. 2, Nov 1997, pp 1204-1209
http://www.ll.mit.edu/publications/journal/pdf/vol10_no2/10_2hdvectorimaging.pdf
[This paper discusses the use of using higher frequency radar to increase image resolution.  The author derives methods to clear images generated using airplane ground surveying radar. ]
   
 

S. R. DeGraaf, SAR imaging via modern 2-D spectral estimation methods. IEEE Transactions on Image Processing, vol. 7, no. 5, 1998, pp. 729-761.
http://ssg.mit.edu/~mcetin/publications/moses_DSS04.pdf
[ This paper reviews methods on improving the resulting image of wide angle synthetic aperture radar (SAR)  Imaging.  The author looks at high and low frequencies and applies algorithms to both to attempt to clear the images. ]