Changes between Initial Version and Version 1 of InstrumentCalibration


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Timestamp:
May 22, 2012 11:08:24 AM (7 years ago)
Author:
emca
Comment:

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  • InstrumentCalibration

    v1 v1  
     1= Instrument Calibration =
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     3The instruments are returned to their respective manufacturer (Specim and Leica) at the end of each flying season for annual maintenance and calibration.  We also carry out our own in-house calibration of the Hyperspectral sensors at ARSF Gloucester.
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     6 == Leica Calibration ==
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     8The ALS50-II LiDAR and the RCD105 camera are calibrated at Leica Geosystems offices in Heerbrrugg, Switzerland.
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     10 === Leica LiDAR ===
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     12As part of the annual calibration Leica fly a test flight to check the system and provide us with a Calibration Certificate. An Intensity Based Range Correction (IBRC) file is generate for the sensor. This table is used to correct for effect of varying range based on return signal strength. Since 2012 Leica provide us with both a single IBRC file and a Dual IBRC. The dual table allows for improved range correction when a lower scan rate is used during data collection. 
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     14The remaining calibration parameters provided by Leica are subsequently calculated/verified during the Boresight procedure.
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     16The latest calibration certificate for the ALS50-II can be found [attachment:SN089_ALS50_Calibration_Report-120202.pdf here].
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     18Additional calibration files provided by leica, which are used during the [wiki:ProcessingAtDAN/Lidar LiDAR processing], can be found below:
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     20Single IBRC Table: [attachment:SN89_IBRC-25-Jan-2012.txtSN89_IBRC-25-Jan-2012.txt] [[BR]]
     21Dual IBRC Table: [attachment:SN89_IBRC_Dualtable_20120125.csv SN89_IBRC_Dualtable_20120125.csv]
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     23 === Leica RCD ===
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     25The latest calibration certificate for the RCD105 can be found [attachment:RCD105_Cal_Cert_021_060_019_RGB_20100202.pdf here].
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     27Additional calibration files provided by leica, which are used during the [wiki:ProcessingAtDAN/RCD camera processing], can be found below:
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     29Bias correction: [attachment:CH39_021_060_019_RGB_20100109_G3bl.tif CH39_021_060_019_RGB_20100109_G3bl.tif] and [attachment:CH39_021_060_019_RGB_20100109_G3sl.tif CH39_021_060_019_RGB_20100109_G3sl.tif]  [[BR]]
     30System repsonse correction: [attachment:CH39_021_060_019_RGB_20100109_G3gl.tif CH39_021_060_019_RGB_20100109_G3gl.tif] [[BR]]
     31Colour Processing: [attachment:CH39_021_060_019_RGB_20100109_G3pl.txt CH39_021_060_019_RGB_20100109_G3pl.txt]
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