Monopulse, Fan-Beam, Search-Radar System with Improved Height and Azimuth Determination.
Abstract
Multipath signals are eliminated at all but the lowest elevation angles allowing monopulse techniques to be used to determine target height and azimuth in a two-dimensional, fan-beam, search-radar system. A narrow-azimuth fan beam is oriented at an angle to the vertical plane and has its boresight centered approximately on the horizon so that a V-beam is formed by the direct beam and the portion of the direct beam reflected from the surface (i.e., the portion that is below the horizon). The reflected beam does not interfere with the direct beam except in a multipath region near the reflecting surface. Frequency diversity or a receive-only beam in the vertical plane may be used to determine if a target is in multipath region. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 24, 1977
- Accession Number
- ADD004013
Entities
People
- Ben H. Cantrell
Organizations
- United States Department of the Navy