Kalman Filter Preprocessor.
Abstract
An optical signal preprocessor for computing the input functions required to utilize an extended Kalman filter algorithm. An incoming stream of time-varying images is integrated to form a reference image, which is then subtracted from each subsequently sampled image. The result is digitized for use with the extended Kalman filter algorithm. The reference image is also fed through a spatial filter and then input to two light valve image subtraction systems to produce difference image approximations of two partial derivatives. These derivative functions are then digitized and utilized as inputs to the extended Kalman filter algorithm. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 15, 1982
- Accession Number
- ADD009698
Entities
People
- Michael K. Giles
Organizations
- United States Department of the Air Force