Use of a Self-Focusing Antenna for Low-Angle Tracking
Abstract
The response of a self-focusing antenna to two closely spaced point targets is investigated. The geometry simulated corresponds to the radar tracking of a low-flying target over a reflective surface. In one case the antenna consists of a vertical linear array of elements. When the conjugates of the incident signals are retransmitted at each element, after several iterations the antenna radiation pattern introduces significant discrimination against the weaker of the two unresolvable point targets. In the other case the same aperture is divided into two equal subapertures, and conjugate reflections are applied to the two subapertures rather than to each element. It is found that very nearly the same weak-target discrimination results. The implications of these results with regard to low-angle tracking are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 28, 1973
- Accession Number
- AD0764052
Entities
People
- James H. Hughen
Organizations
- United States Naval Research Laboratory