Numerical computation of scattering from a perfectly conducting random surface
Abstract
An angular resolution (and therefore stability) criterion is derived in terms of the width of a window function, the incidence angle, the wavelength, and the angular variations of the average reradiated power. The effect of the actual width of a sample surface on computing a power of field estimate is also discussed. The total number of the sample surfaces required is established by applying the formula for the confidence interval or a chi-square variable. The one-dimensional random surface used was generated by first generating a sequence of Gaussian variates. A technique described by Naylor et al. (1966) was employed to smooth these variates repeatedly to form a random surface. A description is presented of the scattered field computation. The parameters affecting the scattered field computation are considered in detail.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- May 1978
- DOI:
- 10.1109/TAP.1978.1141871
- Bibcode:
- 1978ITAP...26..482A
- Keywords:
-
- Digital Simulation;
- Electric Conductors;
- Electromagnetic Scattering;
- Random Processes;
- Surface Roughness Effects;
- Angular Resolution;
- Magnetic Induction;
- Monte Carlo Method;
- Numerical Stability;
- Plane Waves;
- Radiation Distribution;
- Statistical Distributions;
- Communications and Radar