A STEREOGRAPHIC CO-ORDINATE SYSTEM FOR THE UTILIZATION OF DATA FROM SEVERAL RADARS
Abstract
The utilization of information from several radars tracking the same target requires that the data of slant range, azimuth, and height as reported by the various radars of the system be referenced to a common origin of co-ordinates. Experience has shown that the data are best processed in the form of rectangular co-ordinates. Therefore, it becomes necessary to determine a method of projecting the surface area of the earth covered by the radar system onto a plane containing a set of rectangular co-ordinates in order that the positions of, and data from each radar may all be referenced to a common origin for the system. The problem has been separated into two aspects, conversion and transfor, not only for con venience in analysis but also because transformation is a separate problem unto itself, arising when it is necessary to communicate the position of a target in one system of radars to another system. The two aspects of the problem may be defined as follows: (a) Conversion of the data of slant range, azimuth, and height to rectangular co-ordinates in a plane with the radar as the origin. (b) Transformation of the rectangular co-ordinates of a target in one plane into the rectangular co-ordinates in another plane. The same method of projection must be applied to all radars within a system, both for conversion and transfor mation. An exchange of information between sys tems employing differing methods of projection is possible, but extremely complicated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1959
- Accession Number
- AD0410167
Entities
Organizations
- MITRE Corporation