High-resolution 3D coherent laser radar imaging

Joseph Buck; Andrew Malm; Andrew Zakel; Brian Krause; Bruce Tiemann

doi:10.1117/12.719483

3 May 2007 High-resolution 3D coherent laser radar imaging

Joseph Buck, Andrew Malm, Andrew Zakel, Brian Krause, Bruce Tiemann

Author Affiliations +

Proceedings Volume 6550, Laser Radar Technology and Applications XII; 655002 (2007) https://doi.org/10.1117/12.719483
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

The Super-resolution Sensor System (S³) program is an ambitious effort to exploit the maximum information a laser-based sensor can obtain. At Lockheed Martin Coherent Technologies (LMCT), we are developing methods of incorporating multi-function operation (3D imaging, vibrometry, polarimetry, aperture synthesis, etc.) into a single device. The waveforms will be matched to the requirements of both hardware (e.g., optical amplifiers, modulators) and the targets being imaged. The first successful demonstrations of this program have produced high-resolution, three-dimensional images at intermediate stand-off ranges. In addition, heavy camouflage penetration has been successfully demonstrated. The resolution of a ladar sensor scales with the bandwidth as dR = c/(2B), with a corresponding scaling of the range precision. Therefore, the ability to achieve large bandwidths is crucial to developing a high-resolution sensor. While there are many methods of achieving the benefit of large bandwidths while using lower bandwidth electronics (e.g., an FMCW implementation), the S³ system produces and detects the full waveform bandwidth, enabling a large set of adaptive waveforms for applications requiring large range search intervals (RSI) and short duration waveforms. This paper highlights the three-dimensional imaging and camo penetration.

Citation Download Citation

Joseph Buck, Andrew Malm, Andrew Zakel, Brian Krause, and Bruce Tiemann "High-resolution 3D coherent laser radar imaging", Proc. SPIE 6550, Laser Radar Technology and Applications XII, 655002 (3 May 2007); https://doi.org/10.1117/12.719483

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