Adaptive Tropospheric Range Correction
Abstract
This report describes a technique for obtaining accurate adaptive range correction for very low elevation angles utilizing radar as a sensor. A two step procedure is utilized. First, the radar obtains refractive bending information from tracking cooperative targets whose angular positions and range are accurately known. This information is thus used to estimate the range correction for uncooperative targets. The technique consists of defining the range delay as a sum of three terms of which the first term involves integration over the refractive profile, whereas, the other two terms are expressable in terms of parameters directly measured by the radar. It also turns out that the integral of the first term can be accurately evaluated using a 'standard profile' determined by the radar. This technique was evaluated using 96 radiosonde profiles. Maximum range error estimates were about 1.5 meters with typical values of less than 50 cm.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1977
- Accession Number
- ADA049282
Entities
People
- Lee A. Morgan
- Philip A. Hicks
- Steven Weisbrod
Organizations
- Teledyne Technologies