Changes between Initial Version and Version 1 of Processing/LiDARIntensity


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Timestamp:
Feb 13, 2015 2:38:48 PM (5 years ago)
Author:
dac
Comment:

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  • Processing/LiDARIntensity

    v1 v1  
     1= Working with LiDAR Intensity =
     2
     3''Note: this page is currently a work in progress which will be updated as more progress in this area is made''
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     6As well as the time / range of the echo return, the system also measures the intensity (peak power) of the echo. Currently this value is not calibrated nor comparable along the flight line. This is due to the automatic gain control of the system (AGC), where the echo power is amplified by different amounts dependant on the return strength. This can result in a ``striping'' effect in the intensity images.
     7Although the gain value changes along the flight line it is consistent for a return pulse, that is, for a recorded waveform the same gain value is used along the entire waveform.       
     8                                                                               
     9The AGC value is saved in the `User Data' field for each point with delivered data and is constant for a given pulse, that is, for a recorded waveform the same gain value is used along the entire waveform.