Stereographic Projection in the Joint Surveillance System
Abstract
In air defense and air traffic control systems, data from the system radars are stereographically projected onto a common coordinate plane for presentation to system operators. The stereographic projection of radar data involves two steps; stereographic projection using slant range, azimuth and height information to obtain polar coordinates in a plane of projection centered at the radar site, and transformation of the radar coordinates into cartesian coordinates on a common coordinate plane. This report describes analysis that was performed on the stereographic projection process. The results indicate that the SAGE/BUIC equations for stereographic ground range produce unacceptably large registration errors when extended to a large region. The results further indicate that the error can be corrected by a simple modification of the SAGE/BUIC equations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1976
- Accession Number
- ADA031343
Entities
People
- C. H. Nordstrom
Organizations
- MITRE Corporation