Backscatter signals from bicyclist

**Library:**Phased Array System Toolbox / Environment and Target

The Backscatter Bicyclist block simulates backscattered radar signals reflected from a moving bicyclist. The bicyclist consists of the bicycle and its rider. The object models the motion of the bicyclist and computes the sum of all reflected signals from multiple discrete scatterers on the bicyclist. The model ignores internal occlusions within the bicyclist. The reflected signals are computed using a multi-scatterer model developed from a 77-GHz radar system.

Scatterers are located on five major bicyclist components:

bicycle frame and rider

bicycle pedals

upper and lower legs of the rider

front wheel

back wheel

Excluding the wheels, there are 114 scatterers on the bicyclist. The wheels
contain scatterers on the rim and spokes. The number of scatterers on the wheels depends on
the number of spokes per wheel, which can be specified using the
`NumWheelSpokes`

property.