Gross spatial structure of land clutter

If the two detection probabilities (per scan in cluttered and uncluttered regions) are very different then the path of an air vehicle is critical in determining the radar performance. Simplistic smooth earth, uniform σ° clutter models are totally inadequate to describe such cases. The authors develop a more realistic representation of the spatial distribution of land clutter. This would complement the study of small-scale characteristics such as texture, by describing whether or not a given resolution cell (or group of cells) should be treated as cluttered