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Updated: Jun 28, 2026
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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
Published on: February 12, 2014
Synthetic aperture hitchhiker imaging
Can Evren Yarman1, Birsen Yazici
1Houston Technology Center,WesternGeco-Schlumberger, Houston, TX 77042, USA. yarman@ecse.rpi.edu
Summary
This study presents a new radar imaging method using sources of opportunity. The technique reconstructs scene radiance from arbitrary flight paths, preserving scene edges for improved synthetic-aperture radar (SAR) imaging.
Area of Science:
- Radar Systems Engineering
- Signal Processing
- Computational Imaging
Background:
- Synthetic-aperture radar (SAR) imaging typically requires dedicated transmitters.
- Existing methods face limitations with arbitrary receiver trajectories and non-ideal scenarios.
Purpose of the Study:
- To develop a novel synthetic-aperture imaging method for radar systems utilizing sources of opportunity.
- To enable robust image reconstruction from arbitrary flight trajectories.
Main Methods:
- A spatio-temporal correlation-based filtered-backprojection (FBP) image reconstruction method is developed.
- Measurements from different receiver locations are correlated to form a forward model.
- Microlocal techniques are employed for scene radiance recovery.
Main Results:
- The method successfully reconstructs scene radiance, projecting it onto the intersection of hyperboloids and surface topography.
- It is applicable to stationary/mobile and cooperative/noncooperative sources of opportunity.
- The method preserves visible scene edges and handles arbitrary flight trajectories.
Conclusions:
- The novel FBP-type method offers a flexible and robust approach to SAR imaging using sources of opportunity.
- It demonstrates effective performance in numerical simulations for various transmitter configurations.
