Electromagnetic Wave MATLAB Library
Monte Carlo Simulation of Random Rough Surface Scattering
Gaussian Surface with Ocean Spectrum
Reference: Chapter 4
of Scattering of
Electromagnetic Waves: Numerical Simulations
Program
rs1do.m
calculates scalar wave scattering by a one-dimensional Gaussian random rough
surface with bandlimitedocean spectrum and Dirichlet boundary condition. The
surface integral equation is solved numerically using the Method of Moments
(MoM). Bistatic scattering coefficients are computed.
- [tsd,sig]=rs1do(wave,nr,N,rL,kl,ku,us,g,tid,nsa,seed)
- wave:
wavelength
- nr:
total number of surface realizations
- N:
total number of sample points
- rL:
rough surface length
- kl:
lower wavenumber cutoff
- ku:
upper wavenumber cutoff
- us:
wind friction velocity
- g:
tapering parameter for incident wave
- tid:
incident angle in degree
- nsa:
number of scattered angles from -90 deg to 90 deg
- seed:
seed for random number generator
- tsd:
scattering angles in degree
- sig:
bistatic scattering coef (MoM)
- Requires rsgeno.m
for generation of Gaussian rough surfaces with ocean spectrum
Example: wave=1.579 cm (freq=19 GHz), nr=100, N=256, rL=25.6*wave, kl=100
(1/m), us=0.437198 m/sku=4000 (1/m), g=rL/4, tid=50, nsa=179, seed=112233
