| Brand |
Airborne Hydrography AB |
| type/name of software |
Hawk Eye II - Bathymetric and Topographic Lidar system |
| data of introduction/last update |
2006/2008 |
| - weight [kg] & size [cm] of laser system |
95kg; 121 x 50 x 62 cm |
| - weight [kg] & size [cm] of control rack |
65kg; 60 x 36 x 70 cm |
| - power requirements |
< 1.3 kW |
| wavelength [nm] |
532 nm bathy , 1,064 nm topo |
| pulse length [ns] |
5 ns |
| - beam divergence (across/along tr.) [mrad] |
11 mrad typical (Optional 2-12 mrad adjustable) |
| - first/last pulse (Y/N) |
Y |
| - multiple pulses in air (Y/N) |
N |
| - type/class laser |
Class 4 |
| - eyesafe range [m] |
< 150 m |
| - scanning method[1] |
2-axis gimbal 250 mm diameter mirror |
| - rotation speed of mirror[2] |
13 Hz scan rate. 2D tracking optimization |
| - pulse frequency (min-max) [Hz] |
4,000 Hz bathymetric, 64,000 Hz topographic |
| - max. scan angle [deg] |
±25 deg. |
| - max. # of recorded echoes/pulse |
Bathy full waveform, topo 4 echos per pulse |
| - pulse sampling frequency[3] |
1 GHz |
| - pulse detection method[4] |
Proprietary |
| - recording of return signal intensity [y(bits)/n][5] |
Y (8 bits bathymetric) |
| - GPS system[6] |
Applanix Pos AV 410 or 510 |
| - GPS precision planimetric/height (2 sigma) [cm] |
< 60 cm / < 10 cm (Post Processed, 2 sigma) |
| - INS system[7] |
Applanix Pos Av 410 or 510 |
| - INS precision (roll/pitch/heading) [deg] |
0,01 deg (Post processed, 2 sigma) |
| - GPS/INS postprocessing software |
PosPAC |
| - Pointing precision (roll/pitch/heading) [deg] |
< 0,03 deg |
| - Range precision (2 sigma) [cm] |
Bathy < 50 cm, Topo < 30 cm (Typical conditions, 2 sigma) |
| - Elevation precision at 1km (2 sigma) [cm] |
Bathy < 50 cm, Topo < 30 cm ( Typical conditions, 2 sigma) |
| - Overall planimetric precision (2 sigma) [cm] |
Bathy < 5 m, Topo < 1m (Typical conditions, 2 sigma) |
| Max. # of points/m2 |
Bathymetric 1 point/m2, topographic 10 points/m2 |
| - Along track point spacing [m][8] |
Bathy 1,9 m / Topo 0,5 m (@ 300m, 75 m/s) |
| - Across track point spacing [m][9] |
Bathy 1,9 m / Topo 0,5 m (@ 300m, 75 m/s) |
| - Cameras[10] |
Optional 2 or 16 Mpix |
| - Data Storage Facilities[11] |
Raided harddrives, removable |
| - Power equipment |
110 / 220 V ground power supply available |
| - typical platform[12] |
Fixed wing |
| - flying heights (min/typical/max) [m] |
250 to 500 m |
| - max. acquisition duration [hrs] |
Carrier limited. System limit 8+ hours |
| - air temperature (min-max) [°C] |
0 to 35°C |
| - air humidity (min-max) [%] |
0 to 90% |
| - mission planning software |
Operator Console; import from other software |
| - postprocessing software |
Coastal Survey Studio |
| - proven applications |
Many surveys around the world |
| remarks [max. 25 words][13] |
Bathymetry (down to 50m) and topography simultaneausly. Roll, pitch, yaw and off-track scanning compensation. |
