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5 Appendix A
5.1 Parameter error significance and functionality implications
Camera height
The range measurement accuracy of the system is
proportional to the camera height error. E.g., 1 cm error in
camera height of 2.2 meters implies a ~0.45% error in range
and headway measurement (insignificant).
Lateral distance to the front wheels
An error in this parameter will cause the warning to be moved
by the same amount. For example, if the distance to right
wheel is off by 1 cm then the warning will be issued with an
error of 1 cm from the lane marking line (insignificant).
Distance to the front of the vehicle
The headway calculation subtracts this value from the
camera-to-target distance. For example, an error of 10 cm in
the distance of the vehicle bumper to the camera will result,
for a target in the range of 30 meters, in a 0.33% error in
range measurement. For European trucks this parameter can
be assumed to be 0.
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