User Guide

54A0049_7.0_EN / Leddar Pixell – User Guide 33 | 127
4.3.2. Impact of Range in Vertical Gap
Because the gap between the laser lines expands in propagation with distance, there is a complex interaction
for a particular size target and reflectivity and the maximum range up to where this target is detectable. Fig.
22 below shows how the amplitude of the return signal is affected for this target if aligned to the center or
between two vertical lines. Loss of 50% of the normal range for this example is measured with a 50 cm x
50 cm target (50% reflectivity) if it falls totally in the vertical gap.
Fig. 22: Range reduction in a vertical gap
4.3.3. Channel Index
The channel index starts from 0 at the top left of the FoV and increases from left to right and from the top
line to the bottom of the FoV, as shown in Table 7 on page 34. You can set the horizontal and vertical indexes
in the Raw Detections window. See section 10.6.3 on page 78 for more details.
A channel (or segment) can be identified either by:
• its channel index, or
• its coordinates within the FoV (V Channel, H Channel) in the viewer software (Leddar Configurator).
See section 10 on page 56 for more details on Leddar Configurator.
Fig. 23: Channel indexes and measurement
pop-up box in Leddar Configurator