Inverse Synthetic Aperture Radar ( ISAR ) Imaging

Junfei Li 10/13/1998

Problem Definition

Given data collected from a moving object by a linear FM radar, we process the echoed data into a 2-D image of the objectís reflectivity. In this problem, motion compensation is the key to a good reconstructed image.

In the normal case, assume we have knowledge of the radar system parameters but no priori knowledge of the movement of the unknown object. Fortunately, besides the radar data of an object, here we also have access to its GPS data, which reflect the movement of the object. In this project, we would study and compare normal motion compensation and GPS aided motion compensation for ISAR imaging.

Issues to Be Addressed

Expected Conclusions

Plan

Stage 1: Idea, Theory, and Model; 10/10

Stage 2: Algorithms and Implementation; 11/15

Stage 3: Analysis, Conclusion, and Report 12/1

References

  1. D. A. Ausherman, A. Kozma, J. L. Walker, H. M. Jones, and E. C. Poggio, "Developments in Radar Imaging," IEEE Trans. Aerospace Electron. Syst., vol. 20, pp.363-400, July 1984.
  2. M. Soumekh, "A System Model and Inversion for Synthetic Aperture Radar Imaging," IEEE Trans. Image Processing, vol. 1, pp.64-76, Jan. 1992.
  3. D. C. Munson and R. L. Visentin, "A Signal Processing View of Strip-Mapping Synthetic Aperture Radar," IEEE Trans. Acoust, Speech, Signal Processing, vol. 37, pp.2131-2147, Dec. 1989.
  4. H. Wu, D. Grenier, G.Y. Delisle, and D. G. Fang, "Translational Motion Compensation in ISAR Image Processing," IEEE Trans. Image Processing, vol. 4, pp.1561-1570, Nov. 1995.
  5. V. C. Chen and S. Qian, "Joint Time-Frequency Transform for Radar Range-Doppler Imaging," IEEE Trans. Aerospace Electron. Syst., vol. 34, pp.486-499, Apr. 1998.