Quarterly Report, Passive Ranging with Incoherent Systems.
Abstract
Recent research has concentrated on two main issues. The first concerns high-accuracy passive ranging with a moving unaltered single-aperture system. Such passive ranging systems could be used as passive low-level altimeters. The second point concerns use combined optical and digital systems for aberration control. We have earlier demonstrated use of optical/digital systems for insensitivity to misfocus, or second-order aberrations. We show that this same technique can also be used to compensate for chromatic aberration, astigmatism, thermal effects, and spherical aberration. An important reason for controlling aberrations through combination of optics and digital processing is the possibility of making low precision (i.e. low cost) optical systems that perform as high-precision (i.e. high cost) systems.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 10, 1995
- Accession Number
- ADA327583
Entities
People
- Alan Fitzgerrell
- Edward R. Dowski Jr.
- W. T. Cathey
Organizations
- University of Colorado Boulder