Changes between Version 11 and Version 12 of Sensors/LeicaLIDAR/FWMikesNotes


Ignore:
Timestamp:
Apr 10, 2013 7:10:20 PM (7 years ago)
Author:
mggr
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • Sensors/LeicaLIDAR/FWMikesNotes

    v11 v12  
    3434
    3535The intensity is digitised to an 8 bit value.  This is measured after the AGC amplification has taken place and is nominally the same measurement as in the discrete system (though the discrete value is accumulated over a longer time period so will typically have a higher value).  The AGC value for the matching discrete return is the value used for all the related FWD samples - i.e. the AGC value is constant for a laser pulse.
     36 * More information on gains and corrections to remove the AGC effect is at [wiki:Sensors/LeicaLIDAR/FWMikesNotes/FWGainDiscussion]
    3637
    3738Similarly, the range data (measured to 1.5cm range / 100 picoseconds) is still part of the discrete system and FWD ranges are derived by association with the first return's range.