Low-Angle Radar Land Clutter

5.4.3 FOREST TERRAIN

Much natural terrain is forested. The characteristics of land clutter from forested terrain are very different than from open terrain. Section 5.4.3 specifies the characteristics of forest land clutter based on 8,611 measured clutter histograms from 466 forest clutter patches. These measurements break down in two regimes of relief, high (terrain slopes > 2°) and low (terrain slopes < 2°), and in multiple depression angle regimes as shown in Table 5.24. These forest clutter measurements come from 27 different sites.

TABLE 5.24

Numbers of Terrain Patches and Measured Clutter Histograms for Forest, by Relief and Depression Angle^a,^b,^c

^aA single (primary) classifier only is sufficient to describe these patches.

^bA terrain ...