Reflectivity of land clutter
hgtsd— standard deviation of the surface height
beta0— slope of the land type
vegtype— vegetation type
NRCS of Urban Patch
Calculate NRCS, surface height standard deviation, land slope, and vegetation type. Specify an urban land type and a grazing angle of
graz = 10; [nrcs,hgtsd,beta0,vegtype] = landreflectivity("Urban",graz)
nrcs = 0.0549
hgtsd = 10
beta0 = 5.7296
vegtype = 'None'
landtype — Surface land type
"Rugged Mountains" |
"Wooded Hills" |
"Rolling Hills" |
Surface land type, specified as a string of one of the allowed land types.
landtype = "Urban"
graz — Grazing angle
nonnegative scalar | N-length vector of grazing angles
Grazing angle, specified as a scalar or an N-length row vector of nonnegative grazing angles in degrees. Specifies the grazing angles of the clutter patch relative to the radar.
graz_angle = 10
freq — Transmitted frequencies
10e9 (default) | scalar | positive M-length vector
Transmitted frequencies, specified as a scalar or positive M-length vector.
freq = 7*10e9
nrcs — Normalized radar cross section of surface reflectivity
N-length row vector | M-by-N matrix
hgtsd — Standard deviation of surface height
Standard deviation of the surface height, returned as a scalar in meters.
beta0 — Slope of the land type
Slope of the land type β0, returned as a scalar in degrees.
vegtype — Vegetation type
The vegetation type is a character array determined by the
|Land Type||Vegetation Type|
This function assumes a Gaussian clutter model and that the reflectivity of land clutter is mostly independent of wavelength. The Gaussian model may fail to simulate the effects of some natural and most man-made structures, which are generally modeled separately as discrete clutter.
 Barton, David K. Radar Equations for Modern Radar. Norwood, MA: Artech House, 2013.