ALS and ULSLidar Technology developments from RIEGL
Vladimir KadatskiyAirborne Systems Segment Manager
UF/FL-ASPRSFall LiDAR WorkshopNovember 9, 2017
www.riegl.com
About RIEGL
RIEGL has over 49 years of experience in the research, development and production of laser radar measurement devices and systems, and is the global leader in the innovation of LIDAR technology for land, marine, and airborne survey.RIEGL-Timeline_since-1968_asper_30-06-2014_view.pdf
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RIEGLs Family of instruments
Laser Scanners for TLS
LIDAR Engines for ALS & MLS
LIDAR Systems for ALS & BLS
LIDAR Systems for MLS
LIDAR Engines & Systems for ULS
www.riegl.com
New Airborne Instruments: INTERGEO 2017
Innovation in 3D
VQ-1560i-DW VQ-880-GH VQ-780i
Ultra-High Performance dual-
Wavelength system
Topo-Bathymetric lidar
system
High Performance, Wide
Area and Corridor mapping
system
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Key Features of the RIEGL VQ-1560i-DW
• Similarities to RIEGL VQ-1560i:
• PRR of up to 2 x 1000kHz
• Digitization of 1GSps at 12Bit per channel
• Integration of an IMU/GNSS/FMS system, cameras,
Gyro stabilized platform (GSM4000)
• Dual Wavelength (DW) version of the RIEGL VQ-1560i
• Channel 1: green laser wavelength, 532 nm
• Channel 2: infrared laser wavelength, 1064 nm
• Channels deliver complementary information on targetsdifferent amplitudes and reflectances on same target
• Adjustable settings: for both channels laser power, for green channel beam divergence
Innovation in 3D
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VQ-1560i-DW
Shallow Water Bathymetry
Innovation in 3DInnovation in 3D
Estimated surface
acquisition depth down to 0.75 m
Reflectance Reflectance GNDVIgreen channel IR channel
Forestry Mapping
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VQ-880-GH Design
• New form factor designed for helicopter use
• New high resolution camera options (100MPx and 4 band option)
• Improved IR channel performance
• Bathymetric laser channel 550Khz PRR, 1.5 secchi
• Topographic laser channel 550Khz PRR
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RIEGL VQ-780i – Development Goals
• Maintain proven rugged design and form factor of LMS-Q780 while:
• Increasing productivity
• Minimizing post processing time
• Improving data quality
Innovation in 3D
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RIEGL VQ-780i – Mechanical Interface
Innovation in 3D
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RIEGL VQ-780i – Improvements over LMS-Q780
• Laser power, x 2.0
• PRR, 400kHz → 1000kHz, x 2.5
• Area acquisition rate increases by 2.5 @ same point density (point densities ≥ 8pts/m²) or
• Point density increases by 2.5 @ at the same area acquisition rate
• Scan rate, 200 lps → 300 lps, x 1.5
• MTA processing, 8 pulses in the air → 22 pulses in the air simultaneously
• Digitization depth, 8 Bit → 12 Bit
• Online waveform processing capability and (smart) waveform recording
• Calibrated intensity values (reflectance)
• Atmospheric clutter suppression (ACS Technology)
• Internal 1TB SSD storage
• Data link interface allows cables of up to 10 m length to the data recorder
• Gbit-LAN interface enables online data transfer (OWP only) to PC/laptop
Innovation in 3D
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RIEGL VQ-780i - Productivity
Innovation in 3D
average point density
1 pts/m² 2 pts/m² 4 pts/m² 8 pts/m² 20 pts/m² 30 pts/m²
measurement rate
333 000meas./sec
466 000meas./sec
666 000meas./sec
666 000meas./sec
666 000meas./sec
666 000meas./sec
area acquisition rate
960 km²/h 672 km²/h 480 km²/h 240 km²/h 96 km²/h 64 km²/h
ground speed 246 kn 196 kn 161kn 145 kn 115 kn 106 kn
flight height AGL
7500 ft2280 m
6600 ft2000 m
5700 ft1740 m
3200 ft970 m
1600 ft 490 m
1150 ft 350 m
swath width 2600 m 2300 m 2000 m 1120 m 560 m 410 m
Assumptions: stripe overlap 20%, terrain reflectance 20%
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RIEGL VQ-780i - Productivity
Innovation in 3D
Area acquisition rate of the RIEGL VQ-780i
•Outperforms LMS-Q780 and LMS-Q1560
•Outperforms even VQ-1560i at less than 5pts/m²
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Atmospheric Clutter Suppression
Innovation in 3D
2300 m
RIEGL VQ-780i
PRR 250 kHz
AGL 2300 m
7500 ft
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Atmospheric Clutter Suppression
Innovation in 3D
due to haze, droplets, fog,
clouds, dust particles, ..
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Atmospheric Clutter Suppression
Innovation in 3D
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Atmospheric Clutter Suppression
Innovation in 3D
what if . . . . . no atmospheric clutter
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Atmospheric Clutter Suppression
Innovation in 3D
RIEGL VQ-780i• User-definable clutter
suppression• Suppression of near-
by thin clouds and layers of fog
. . no atmospheric clutter
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Atmospheric Clutter Suppression
Innovation in 3D
MTA zone 4MTA zone 5
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New integrations – MIDAR 10 camera setup
Innovation in 3D
500 Megapixels per second
1 MHz lidar 60 degree FOV
Fits into 19” port
Completely Gyro stabilized
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Example of Data Acquired at High Point Density
Innovation in 3D
power line at 30pts/m²
each wire consists of two ropes at a distance of approx. 45cm
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Unmmaned Systems UAV
Innovation in 3D
RIEGL VUX-1 UAV (2014)550 KHz PRR, Max operating ALT 1150ft , Weight 3.5kg
RIEGL VUX-1 LR (2015)820 KHz PRR, Max operating ALT 1740ft , Weight 3.5kg
RIEGL mini VUX-1 UAV (2016)100 KHz PRR, Max operating ALT 260ft , Weight 1.5kg
RIEGL mini VUX-1 DL NEW100 KHz PRR, Max operating ALT 260ft , Weight 2.4kg
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Key Facts
Innovation in 3D
• RIEGL‘s online waveform processing
• 15mm accuracy / 10mm precision
• PRR: 100 kHz, 100,000 meas./sec.; 75 revolutions/sec.
• FOV: ±23° = 46° (circular scan pattern)
• Max. measurement range: up to 200m
• Only one MTA-zone – no ambiguity problems
• Laser beam divergence: 1.6 x 0.5 mrad
• Max. number of targets per pulse: up to 5
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Key Facts
Innovation in 3D
• Data storage
– Exchangeable SDHC/SDXC memory card - up to 128 GB
– For faster and easier data download
• Lightweight: 2.4kg only
• Different interfaces (user-defined)
• WiFi – for smart configuration of the scanner
• Laser class 1 – eyesafe
• Wavelength: near infrared, 905 nm
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miniVUX-1DL: Scan Pattern Example
Innovation in 3D
52 pts/m2 66 pts/m2 316 pts/m2
nadir
Sample Data
• Red dots = circular arc behind the scan origin• Blue dots = circular arc in front of the scan origin x = 40m off-nadir
• AGL 80 m• Speed 18 m/s, 40 mph• PRR 100 kHz• LPS 75 Hz
Detailed Views (2m x 2m)
x = 20m off-nadir
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Data: miniVUX-1DL (on RiCOPTER)
Innovation in 3D
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miniVUX-1DL integrated into DT26X
Innovation in 3D
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Data: miniVUX-1DL (integrated into DT26X)
Innovation in 3D
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APX-20: Summary
Innovation in 3D
• New product designed for UAV applications
– Board + new lightweight high performance external IMU
– Total: 1.98 lbs (900g) less weight (compared to AP20+CU)
– Directly integrated
• No need for control unit (CU)
• Comparable accuracy (AP20/APX-20)
• POSPac UAV support
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Camera Integrations
Innovation in 3D
• NADIR camera solution for all scanners
▪ Sony Alpha 6000 or Sony Alpha 7R
• Thermal imagery integration
▪ Flir Tau2 / Vue Pro or Workswell WIRIS 640
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Integration Kit 600
Innovation in 3D
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Integration Kit 600: Contents
Innovation in 3D
The kit consists of:
• 1 x mounting plate
• 4 x vibration isolation dampers
• 1 x GNSS antenna, cable, and bracket
• 1 connection box “light”• system power cable
• multi-purpose cable
• trigger cable
• RC expansion board
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Integration Kit 600: Setup
Innovation in 3D
miniVUX-1UAV
Connection Box “light”
IMU Sensor (at the back)
Connectors:
• Power supply
• Antenna
• Cameras
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Summary
• New instruments for new applications and markets:
– VQ 1560i DW – 2Mhz PRR lidar, Forestry, shallow water bathymetry
– VQ880-GH – newly improved topo-bathy system for variety of topo-bathymetric projects
– VQ780i – High altitude and corridor mapping compact lidar system
– Mini VUX-1 DL – compact, lightweight UAS system with multi-target capability and high performance
Innovation in 3D
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