It is possible to find other codes, that claim to be able to calculate RCS. Many of them can only calculate up to two times reflections. Three times reflections – like corner reflections – are the most important thing to avoid if you want to create a stealth object. With cadRCS it is possible to calculate up to 10 reflections. Go to our download page and check if your code can calculate the corner reflector and the parabola correctly.
Polar plot of the correct RCS of a corner reflector calculated by cadRCS.
An RCS calculating code must be able to calculate this, otherwise no results from that code can be trustworthy.
The corner reflector is widely used in connection with radars, sometimes as calibrating targets. At sea, they are used on buoys so ship radars can detect them. Also small ships use corner reflectors in order to get high enough RCS so other ships’ radars can detect them.
This figure shows a polar plot of the correct RCS of a parabola calculated by cadRCS. Not all codes claiming they do RCS calculations are able to calculate this peak in RCS looking directly into the parabola. Anyway – every measurement team knows that this peak is true.