LiteMapper

outline	features	components
applications	specifications	highlights

Highlights

Waveform registration

  truly three - dimensional surface (volume) acquisition
  unlimited number of returns
  intensity / amplitude with every return
  high multi-target resolution (0.6 m)
  detection of surface inclination (10°)
  detection of surface roughness (0.15 m)
  detection of low ground vegetation and its height (0.15 m)
  more accurate / reliable / terrain height determination
  more sensitive terrain height detection
  vertical crown density
  crown depth
  more accurate vegetation height
  three-dimensional density signature for improved tree species classification
  detection and more accurate localization of surface features smaller than laser footprint
       (ditches, low walls, breaklines)
  more accurate range measurements: no range walk due to surface reflectance,
       inclination

Large scan angle

  large swath, also at low altitudes (below cloud operation)
  efficient surveying (large high-density aereal aquisition rate)
  multi-aspect surface modelling (at > 50% flighline overlap) - every location is seen by
       multiple measurements
  low sensitivity to aircraft roll - avoids coverage gaps
  detection of tree stems, building walls, steep terrain slopes
  undercutting of overhangs, buildings, bridges, trees (improved ground detection)

High accuracy

  short pulse width, very low range noise -> low height uncertainty, high geometrical
       accuracy
  high scan angle accuracy -> superior pointing accuracy, high geometrical accurracy
  fully digital scan angle detection -> no drift, geometrical accuracy remains constant
       throughout flights, projects
  high-accuracy fast IMU -> superior pointing accuracy (factor 2-3 for entire system over
       competition)
  constant scanner motion -> regular raster scan pattern, equidistant surface sampling,
       resulting in superior accuracy of surface representation (rectangular surface sampling,
       no sinusoidal or triangular patterns with variable point spacing)
  variable scan speed -> regular point spacing at different flight speeds, altitudes,
  high measurement rate -> high point density, full area sampling (>97% closure)
       possible