Relatively speaking the radar waves are operating at near the speed of light....and that is how they calculate the speed and distance by using Fourier
Transforms as well as the Doppler effect which essentially calculates the inherent delay in the returned signal.
By understanding the speed of the sent radar wave and measuring the delay one can calculate the speed and distance of the distant object.
The returned wave would contain these artifacts in the form of noise that would resemble perpendicular objects and/or geometrically angled surfaces
more commonly associated with structures....
This is the same reason as to why our stealth aircraft possess minimal if any flat/vertical surfaces in order to minimize the reflected radar wave.
Peace


) and after 7 years paid the
loans off.