Introduction - If you have any usage issues, please Google them yourself
SPHERE_RCS calculates the exact RCS for a perfect sphere of given diameter, using the Mie series solution, given by equations 4-19, 4-16, and 4-17 in section 4.2 of "Radar Cross Section," by Eugene F. Knott, John F. Shaeffer, and Michael T. Tuley (c1985 Artech House).