Tomographic satellite image reconstruction using ladar E-field or intensity projections: computer simulation results

Charles L. Matson

doi:10.1117/12.217371

23 August 1995 Tomographic satellite image reconstruction using ladar E-field or intensity projections: computer simulation results

Charles L. Matson

Author Affiliations +

Proceedings Volume 2566, Advanced Imaging Technologies and Commercial Applications; (1995) https://doi.org/10.1117/12.217371
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

The Air Force Phillips Laboratory is in the process of demonstrating an advanced space surveillance capability with a heterodyne laser radar (ladar) system. Because coherent detection is used and the range resolution is obtained by the narrow pulse widths, satellite images can be reconstructed in two ways. The first is to convert the ladar returns into intensity projections, and then use tomographic techniques to create the image. The second approach is to use synthetic aperture radar methods which reconstruct the E-field image of the object and then square the result to get an intensity image. In this paper, these two methods are compared using computer simulations. It is shown that images reconstructed from intensity projections are of much higher quality than images reconstructed from E-field projections. This is shown to be true for both high and low light levels, and for full or limited sets of views.

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Charles L. Matson "Tomographic satellite image reconstruction using ladar E-field or intensity projections: computer simulation results", Proc. SPIE 2566, Advanced Imaging Technologies and Commercial Applications, (23 August 1995); https://doi.org/10.1117/12.217371

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