A Computer Model for Bistatic Sea Surface Microwave Reflectivity
Abstract
This report describes an approach for calculating the bistatic microwave reflectivity of the sea surface for transmit and receive grazing angles less than 10 degrees and any relative geometry through 360 degrees. In the forward scatter region, including specular and glistening zone, the model relies on the work of Beckman and Spizzichino supplemented with later work on shadowing [2] and polarization effects [3]. Outside the forward scatter region, the model is heuristic and based on the similarities between measured monostatic and bistatic sea reflectivity. The motivation behind the model described is the evaluation of the magnitude of jamming reflections into the radar main beam and sidelobes from the sea surface. Such jamming reflections, which sometimes are referred to as "hot clutter," can degrade the performance of adaptive jamming cancellation systems. The model also applies to evaluation of the performance of bistatic radar systems. The complete model is incorporated in a single MATLAB function call, used as a basis for a graphic user interface (GUI), which provides a useful tool to analyze a wide range of scenarios. This code is described in two appendixes and will be provided to qualified organizations upon request.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 14, 2014
- Accession Number
- ADA610697
Entities
People
- Rashmi Mital
- Vilhelm Gregers-hansen
Organizations
- United States Naval Research Laboratory