Optical Wavefront Processing for Hybrid Lidar-Radar (Report with Briefing Charts)
Abstract
The major project goal is to experimentally demonstrate optical wavefront processing (OWP) to improve the ranging performance of underwater lidar by manipulating the optical wavefront of the lidar beam before it illuminates the lidar receiver. Range enhancements exceeding 25% are desired. Three types of OWP are being investigated: 1. Optical wavefront shaping 2. Optical wavefront sensing 3. Optical wavefront encoding OWP has been used in a variety of applications including medical imaging and astronomy to correct for wavefront distortions caused by the propagation medium (i.e. human tissue in medical imaging, and the atmosphere in astronomy). We are, to the best of our knowledge, the first group to use SLMs for wavefront processing in underwater lidar to compensate for the effects of optical propagation in turbid water. This compensation is expected to improve the signal to noise ratio of the optical signal prior to the lidar detector to enable temporal digital signal processing techniquies, developed under previous ONR support, to work better in high turbidity conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 19, 2019
- Accession Number
- AD1115278
Entities
People
- William Jemison
Organizations
- Clarkson University