Dual Wavelength Waveform Processing Airborne LiDAR Scanning System for High-Point Density Mapping Applications NEW RIEGL VQ-156i-DW enhanced target characterization based upon simultaneous measurements at green and infrared laser wavelengths high laser pulse repetition rate of up to 1 MHz per laser channel up to 1.33 million measurements per second on the ground data acquisition at a wide range of point densities excellent multiple target capability enables Multiple-Time-Around (MTA) processing of up to 2 pulses simultaneously in the air online waveform processing as well as smart and full waveform recording for both LiDAR channels integrated inertial measurement unit and GNSS receiver integrated, easily accessible medium format camera prepared for integration of a secondary camera high-speed fiber data interface to RIEGL data recorder housing shape and mounting flange optimized for interfacing ing with typical hatches hes and stabilized iz platforms The VQ-156i-DW is a new airborne LiDAR scanning system offering two LiDAR channels of different wavelengths, green and infrared (IR). These wavelengths are well chosen to allow the acquisition of scan data of complementary information content, thus delivering two independent reflectance distribution maps, one per laser wavelength. Scan data acquired with the RIEGL VQ-156i-DW are the input for wellestablished scan data processing methods but also for the development of highly sophisticated data processing and evaluation algorithms for new areas of application like vegetation mapping in agriculture and forestry. Thus the VQ-156i-DW offers innovative technology for commercial as well as scientific and research applications. The VQ-156i-DW provides a laser pulse repetition rate of up to 1MHz per LiDAR channel, resulting in a total of more than 1.3 million measurements per second on the ground. The VQ-156i-DW works at highest productivity when both LiDAR channels are combined, typically at altitudes up to 83 ft. However, each channel is also prepared for stand-alone operation. This channel selection capability in combination with a matched line of measurement programs as well as widely variable scan parameters enable highest possible flexibility for meeting highly specific requirements of challenging application scenarios. The system is completed by a high performance IMU/GNSS unit and up to two optional cameras. A 1 megapixels RBG camera is intended to be used as primary camera, as secondary camera a thermal or a NIR camera can be built in. The mounting flange is optimized for simple interfacing with typical aircraft hatches and stabilized mounts by means of a specific adapter ring. Applications: Scientific and Research Applications Agriculture and Forestry Mapping of Vegetation and Normalized Difference Vegetation Index (NDVI) Glacier & Snowfield Mapping Mapping of Lake Sides & River Banks High Point Density Mapping Corridor Mapping visit our website www.riegl.com Airborne Laser Scanning
RIEGL VQ-156i-DW Scan Pattern effective FOV 28 Each channel delivers straight parallel scan lines. The scan lines of the two channels are tilted against each other by 28 degrees providing an optimum distribution of the measurements on the ground invariant to changes in terrain height. Tilt Angle of Scan Lines ± 14 Forward/Backward Scan Angle in Non-Nadir Direction ± 8 at the edge RIEGL VQ-156i-DW Elements of Function and Operation aperture of primary camera (RGB) aperture of IR laser channel IMU bay mounting flange aperture of green laser channel aperture of secondary camera connectors for power supply and data interface desiccant cartridges cooling air outlets carrying handles 2 Copyright RIEGL Laser Measurement Systems GmbH 217 All rights reserved.
RIEGL VQ-156i-DW Main Dimensions all dimensions in mm Copyright RIEGL Laser Measurement Systems GmbH 217 All rights reserved. 3
RIEGL VQ-156i-DW System Components GNSS antenna USB 3. interface high speed interface LAN interface - flight guidance LAN interface - system control laser safety switch control for gyro-stabilized mount laser safety switch RIEGL DR156(i) FOTO RIEGL VQ-156i-DW pilot display flight guidance (optional) ix- Controller (optional) gyro-stabilized mount GSM-4 (optional) operator working station (optional) A minimum number of system components and external cabling is required for an easy and quick installation in aircrafts. RIEGL VQ-156i-DW Installation Examples RIEGL VQ-156i-DW installed in the nose pod of fixed-wing aircraft DA42 MPP RIEGL VQ-156i-DW installed on GSM-4 gyro-stabilized platform preferably to be used with fixed-wing aircrafts 4 Copyright RIEGL Laser Measurement Systems GmbH 217 All rights reserved.
Measurement Range & Point Density - Green and IR Laser Channel PRR = 2x7 khz, laser power level 1%, green and IR laser channel 4 36 7 6 32 5 4 28 3 2 24 1 2 16 12 8 MTA 4 4 @ visibility 4 km 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 Target Example: VQ-156i-DW at 2 x 7, pulses/sec, laser power level 1% Altitude = 3,7 ft AGL, Speed = 115 kn 32 28 24 2 16 12 8 4 1 9 8 7 6 5 4 3 2 1 2 4 35 3 25 2 15 1 5 37 ft 49 ft 65 ft 86 ft 28 ft (85 m) 37 ft (113 m) 45 ft (15 m) 65 ft (198 m) 86 ft (262 m) 28 ft 96 m 126 m 167 m 222 m 294 m 5 7 9 11 13 15 17 19 Results: Point Density ~ 12.5 pts/m² Area Acquisition Rate ~ 215 km²/h PRR = 2x1 khz, laser power level 1%, green and IR laser channel 8 1 14 18 25 32 4 5 65 8 1 32 1 28 9 8 7 24 6 @ visibility 4 km 24 8 2 7 6 5 27 ft (82 m) 35 ft (117 m) 44 ft (134 m) 56 ft (171 m) 72 ft (219 m) 92 m 12 m 15 m 191 m 246 m 65 8 2 16 12 8 4 5 4 3 2 1 MTA 4 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 Example: VQ-156i-DW at 2 x 1,, pulses/sec, laser power level 1% Altitude = 5,6 ft AGL, Speed = 17 kn 16 12 8 4 6 5 4 3 2 1 6 2 4 3 2 1 35 ft 44 ft 56 ft 72 ft 27 ft 5 7 9 11 13 15 17 19 Results: Point Density ~ 8 pts/m² Area Acquisition Rate ~ 48 km²/h PRR = 2x1 khz, laser power level 5%, green and IR laser channel 24 6 5 4 3 18 2 1 12 6 MTA 4 @ visibility 4 km 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 Target 16 12 8 4 5 4 3 2 1 2 8 7 6 5 4 3 2 1 25 ft 32 ft 41 ft 53 ft 19 ft (58 m) 25 ft (76 m) 32 ft (98 m) 41 ft (125 m) 53 ft (162 m) 19 ft 65 m 85 m 19 m 14 m 181 m 5 7 9 11 13 15 17 19 1 14 18 25 32 4 5 65 8 5 65 8 1 14 18 25 32 4 5 65 Example: VQ-156i-DW at 2 x 1,, pulses/sec, laser power level 5% Altitude = 4,1 ft AGL, Speed = 15 kn The following conditions are assumed for the Operating Flight Altitude AGL ambiguity resolved by multiple-time-around (MTA) processing target size laser footprint average ambient brightness effective FOV roll angle ±5 Results: Point Density ~ 12.3 pts/m² Area Acquisition Rate ~ 31 km²/h Assumptions for calculation of the Area Acquisition Rate 2% overlap of neighboring flight strips. This overlap covers a roll angle of ±5 or a reduction of flight altitude AGL of 2%. Typical ENOHD Calculated under assumption of an angular step width of.12, a beam divergence of.72mrad of the green laser and an aircraft speed higher than 1kn. Copyright RIEGL Laser Measurement Systems GmbH 217 All rights reserved. 5
Measurement Range & Point Density - Green and IR Laser Channel PRR = 2x1 khz, laser power level 25%, green and IR laser channel 18 2 15 12 9 6 3 1 MTA 4 @ visibility 4 km 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 Target 12 8 4 4 3 2 1 2 12 1 8 6 4 2 23 ft 3 ft 4 ft 17 ft 13 ft (4 m) 17 ft (52 m) 23 ft (7 m) 3 ft (91 m) 4 ft (122 m) 13 ft 44 m 58 m 79 m 12 m 137 m 5 7 9 11 13 15 17 19 32 4 5 65 8 1 14 18 25 32 4 5 Example: VQ-156i-DW at 2 x 1,, pulses/sec, laser power level 25% Altitude = 3, ft AGL, Speed = 125 kn Results: Point Density ~ 2.2 pts/m² Area Acquisition Rate ~ 19 km²/h PRR = 2x1 khz, laser power level 12%, green and IR laser channel 13 12 11 1 9 8 7 6 5 4 3 2 1 MTA 4 @ visibility 4 km 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 Target 1 8 6 4 2 3 25 2 15 1 5 2 18 16 14 12 1 8 6 4 2 9 ft 16 ft 21 ft 28 ft 12 ft 9 ft (27 m) 12 ft (37 m) 16 ft (49 m) 21 ft (64 m) 28 ft (85 m) 31 m 41 m 55 m 72 m 96 m 5 7 9 11 13 15 17 25 32 4 5 65 8 1 14 18 25 32 Example: VQ-156i-DW at 2 x 1,, pulses/sec, laser power level 12% Altitude = 1,2 ft AGL, Speed = 15 kn Results: Point Density ~ 6.2 pts/m² Area Acquisition Rate ~ 64 km²/h The following conditions are assumed for the Operating Flight Altitude AGL ambiguity resolved by multiple-time-around (MTA) processing target size laser footprint average ambient brightness effective FOV roll angle ±5 Assumptions for calculation of the Area Acquisition Rate 2% overlap of neighboring flight strips. This overlap covers a roll angle of ±5 or a reduction of flight altitude AGL of 2%. Typical ENOHD Calculated under assumption of an angular step width of.12, a beam divergence of.72mrad of the green laser and an aircraft speed higher than 1kn. Copyright RIEGL Laser Measurement Systems GmbH 217 All rights reserved. 6
Measurement Range & Point Density - IR Laser Channel Only PRR = 15 khz, laser power level 1%, IR channel only 65 6 55 5 45 @ visibility 4 km 52 48 44 4 36 17 16 15 14 13 12 2 1.75 1.5 58 ft (177 m) 198 m 74 ft (226 m) 253 m 93 ft (283 m) 318 m 118 ft (36 m) 43 m 15 ft (457 m) 512 m 15 17 2 4 32 35 MTA 4 28 3 24 25 2 2 16 15 12 1 8 2 5 4 1 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 11 1 9 8 7 6 5 4 3 2 1.25 1.75.5 74 ft 93 ft 118 ft 15 ft 58 ft.25 5 7 9 11 13 15 17 19 25 32 4 5 65 8 1 12 15 PRR = 25 khz, laser power level 1%, IR channel only 6 55 5 45 4 35 3 25 2 MTA 4 15 1 @ visibility 4 km 5 4 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 Target Example: VQ-156i-DW at 25, pulses/sec, laser power level 1% Altitude = 12,9 ft AGL, Speed = 145 kn PRR = 35 khz, laser power level 1%, IR channel only Example: VQ-156i-DW at 15, pulses/sec, laser power level 1% Altitude = 15, ft AGL, Speed = 15 kn 5 2 45 1 4 35 3 25 2 15 MTA 4 1 5 @ visibility 4 km 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 Target 48 44 4 36 32 28 24 2 16 12 8 4 36 32 28 24 2 16 12 8 4 16 15 14 13 12 11 1 9 8 7 6 5 4 3 2 1 13 12 11 1 9 8 7 6 5 4 3 2 1 2 2 4.5 4 3.5 3 2.5 2 1.5 1.5 7 6 5 4 3 2 1 75 ft 99 ft 129 ft 44 ft (134 m) 15 m 58 ft (177 m) 198 m 75 ft (229 m) 256 m 99 ft (32 m) 338 m 129 ft (393 m) 441 m 58 ft 44 ft 5 7 9 11 13 15 17 19 65 ft 85 ft 112 ft 5 ft Results: Point Density ~.25 pts/m² Area Acquisition Rate ~ 113 km²/h Results: Point Density ~.5 pts/m² Area Acquisition Rate ~ 95 km²/h 38 ft (116 m) 13 m 5 ft (152 m) 171 m 65 ft (198 m) 222 m 85 ft (259 m) 29 m 112 ft (341 m) 382 m 38 ft 5 7 9 11 13 15 17 19 12 14 18 25 32 4 5 65 8 1 12 15 1 14 18 25 32 4 5 65 8 1 12 Example: VQ-156i-DW at 35, pulses/sec, laser power level 1% Altitude = 8,5 ft AGL, Speed = 155 kn The following conditions are assumed for the Operating Flight Altitude AGL ambiguity resolved by multiple-time-around (MTA) processing target size laser footprint average ambient brightness effective FOV roll angle ±5 Typical ENOHD Calculated under assumption of an angular step width of.12 and an aircraft speed higher than 1kn. Results: Point Density ~ 1 pts/m² Area Acquisition Rate ~ 67 km²/h Assumptions for calculation of the Area Acquisition Rate 2% overlap of neighboring flight strips. This overlap covers a roll angle of ±5 or a reduction of flight altitude AGL of 2%. Copyright RIEGL Laser Measurement Systems GmbH 217 All rights reserved. 7
Measurement Range & Point Density - IR Laser Channel Only PRR = 5 khz, laser power level 1%, IR channel only 5 45 5 4 4 3 35 2 1 3 25 2 15 MTA 4 1 5 @ visibility 4 km 5 1 15 2 25 3 35 4 45 5 55 6 65 7 75 8 Target 4 36 32 28 24 2 16 12 8 4 13 12 11 1 9 8 7 6 5 4 3 2 1 2 12.5 1 7.5 5 2.5 41 ft 55 ft 72 ft 96 ft 31 ft (94 m) 41 ft (125 m) 55 ft (168 m) 72 ft (219 m) 96 ft (293 m) 31 ft 16 m 14 m 188 m 246 m 328 m 5 7 9 11 13 15 17 19 8 1 14 18 25 32 4 5 65 8 1 Example: VQ-156i-DW at 5, pulses/sec, laser power level 1% Altitude = 5,5 ft AGL, Speed = 17 kn Results: Point Density ~ 2 pts/m² Area Acquisition Rate ~ 47 km²/h The following conditions are assumed for the Operating Flight Altitude AGL ambiguity resolved by multiple-time-around (MTA) processing target size laser footprint average ambient brightness effective FOV roll angle ±5 Typical ENOHD Calculated under assumption of an angular step width of.12 and an aircraft speed higher than 1kn. RIEGL VQ-156i-DW Productivity The RIEGL VQ-156i-DW offers highest flexibility due to its channel selection capability. 1 Assumptions for calculation of the Area Acquisition Rate 2% overlap of neighboring flight strips. This overlap covers a roll angle of ±5 or a reduction of flight altitude AGL of 2%. Area Acquisition Rate [km²/h] 9 8 7 6 5 4 3 Productivity of the VQ-156i-DW when using both channels and a typical fixed-wing aircraft with an airspeed >15kn Using an aircraft with a high maximum speed, e.g. up to 27 kn, allows an increase of the VQ-156i-DW s productivity at low point densities. Very high point densities can be achieved when using the VQ-156i-DW with a helicopter Productivity of a single LiDAR channel of the VQ-156i-DW At very low point densities the maximum area acquisition rate can be achieved when using the infrared LiDAR channel only. 2 1 1 2 3 4 5 Average Point Density [pts/m²] 6 7 8 9 1 Examples 1) Average Point Density 2 pts/m 2 8 pts/m 2 2 pts/m 2 6 pts/m 2 Flight Altitude 5 ft 45 ft 33 ft 115 ft 152 m 137 m 1 m 351 m Ground Speed 27 kn 21 kn 115 kn 11 kn Swath Width 17 m 154 m 113 m 4 m Productivity 67 km 2 /h 48 km 2 /h 192 km 2 /h 64 km 2 /h Measurement Rate 2) 466 meas./sec 2 x 666 meas./sec 2 x 666 meas./sec 2 x 666 meas./sec Channel Selection infrared only green & infrared green & infrared green & infrared Camera GSD 3) 4) 14 mm 126 mm 92 mm 32 mm Camera Trigger Intervall 4) 3.5 sec 4.1 sec 5.4 sec 2. sec 1) calculated for 2% target reflectivity and 2% stripe overlap 2) The target detection rate is equal to the measurement rate for terrains offering only one target per laser pulse but may be much higher for vegetated areas. 3) Ground Sampling Distance 4) Calculated for a 1 MPixel CMOS camera with a FOV of 56.2 x 43.7 and 6% image overlap in flight direction (endlap). 8 Copyright RIEGL Laser Measurement Systems GmbH 217 All rights reserved.
Technical Data RIEGL VQ-156i-DW Export Classification The VQ-156i-DW is subject to export restrictions as set up by the Wassenaar Arrangement. Although the Dual-Wavelength LiDAR Scanning System VQ-156i-DW It is classified as dual-use good according to position number 6A8j3 of the official Dual-Use-List has not been designed and developed for bathymetric surveys, it offers to be found on site http://www.wassenaar.org. due to integrating a green laser to a limited extent the capability for Within the European Union, Council Regulation (EC) No 428/29 implements the export hydrographic surveys. restrictions of the Wassenaar Arrangement. The corresponding position number is 6A8j3. Laser Product Classification Class 3B Laser Product according to IEC 6825-1:214 Range Measurement Performance The instrument must be used only in combination with the appropriate laser safety box. as a function of laser power setting, PRR, and target reflectance Laser Power Level: Green and IR Laser Channel 1% 1% 5% 25% 12% Laser Pulse Repetition Rate (PRR) 1) 2 x 7 khz 2 x 1 khz 2 x 1 khz 2 x 1 khz 2 x 1 khz 2) 3) Max. Measuring Range natural targets, min. 2 % reflectance 2 m 17 m 13 m 94 m 68 m natural targets, min. 6 % reflectance 31 m 27 m 2 m 15 m 112 m Max. Operating Flight Altitude 25 m 22 m 16 m 12 m 91 m Above Ground Level (AGL) 2) 4) 83 ft 725 ft 53 ft 4 ft 3 ft NOHD @.72 mrad of the green laser 5) 7) 28 m 24 m 165 m 115 m 8 m ENOHD @.72 mrad of the green laser 6) 7) 112 m 94 m 65 m 45 m 32 m 1) rounded average PRR 2) Typical values for average conditions and average ambient brightness; in bright sunlight the operational range may be considerably shorter and the operational flight altitude may be considerably lower than under an overcast sky. 3) The maximum range is specified for flat targets with size in excess of the laser beam diameter, perpendicular angle of incidence, and for atmospheric visibility of 4 km. Range ambiguities have to be resolved by multiple-time-around processing. 4) Typical values for 6 % reflectance, max. effective FOV, additional roll angle ± 5 5) Nominal Ocular Hazard Distance, based upon MPE according to IEC 6825-1:214, for single line condition 6) Extended Nominal Ocular Hazard Distance, based upon MPE according to IEC 6825-1:214, for single line condition 7) NOHD and ENOHD have been calculated for a typical angular step width of.12, an aircraft speed higher than 1kn, and beam divergences of.72 mrad for the green laser and.25 mrad for the IR laser. NOHD and ENOHD increase when reducing the angular step width or the green laser s beam divergence. Laser Power Level: IR Laser Channel only 1% Laser Pulse Repetition Rate (PRR) 1) 15 khz 25 khz 35 khz 5 khz 2) 3) Max. Measuring Range natural targets, min. 2 % reflectance 38 m 31 m 27 m 23 m natural targets, min. 6 % reflectance 58 m 48 m 42 m 36 m Max. Operating Flight Altitude 47 m 39 m 34 m 29 m Above Ground Level (AGL) 2) 4) 155 ft 129 ft 112 ft 96 ft NOHD 5) 7) 37 m 29 m 24 m 2 m ENOHD 6) 7) 245 m 19 m 16 m 135 m 1) rounded average PRR 2) Typical values for average conditions and average ambient brightness; in bright sunlight the operational range may be considerably shorter and the operational flight altitude may be considerably lower than under an overcast sky. 3) The maximum range is specified for flat targets with size in excess of the laser beam diameter, perpendicular angle of incidence, and for atmospheric visibility of 4 km. Range ambiguities have to be resolved by multiple-time-around processing. 4) Typical values for 6 % reflectance, max. effective FOV, additional roll angle ± 5 5) Nominal Ocular Hazard Distance, based upon MPE according to IEC 6825-1:214, for single line condition 6) Extended Nominal Ocular Hazard Distance, based upon MPE according to IEC 6825-1:214, for single line condition 7) NOHD and ENOHD have been calculated for a typical angular step width of.12 which means non-overlapping laser footprints and an aircraft speed higher than 1kn. NOHD and ENOHD increase when using overlapping laser footprints which may be intended e.g. for power line mapping. Minimum Range 8) 1 m 9) 1) Accuracy 2 mm 1) 11) Precision 2 mm Laser Pulse Repetition Rate up to 2 x 1 khz Effective Measurement Rate up to 2 x 666 khz @ 6 scan angle Echo Signal Intensity provided for each echo signal Laser Wavelength green (532 nm) and near infrared (164 nm) Laser Beam Divergence user selectable for the green laser: approx..7 mrad to approx. 2 mrad (1/e²) 12) fixed for the IR laser:.18 mrad (1/e) 13),.25 mrad (1/e²) 14) Number of Targets per Pulse 15) 16) with online waveform processing: practically unlimited monitoring data output: first pulse 8) Limitation for range measurement capability, does not consider laser safety issues! The minimum range for valid reflectance values is 25 m. 9) Accuracy is the degree of conformity of a measured quantity to its actual (true) value. 1) Standard deviation one sigma @ 25 m range under RIEGL test conditions. 11) Precision, also called reproducibility or repeatability, is the degree to which further measurements show the same result. 12) A license for lower divergence settings is available on request based on a signed liability disclaimer. 13).18 mrad corresponds to an increase of the 1/e beam diameter of 18 cm per 1 m distance. 14).25 mrad corresponds to an increase of the 1/e² beam diameter of 25 cm per 1 m distance. 15) Depending on laser pulse repetition rate, up to a max. of 15 targets per laser pulse. 16) If the laser beam hits, in part, more than one target, the laser s pulse power is split accordingly. Thus, the achievable range is reduced. Technical Data to be continued at page 1 Copyright RIEGL Laser Measurement Systems GmbH 217 All rights reserved. 9
Technical Data RIEGL VQ-156i-DW (continued) Scanner Performance Scanning Mechanism rotating polygon mirror Scan Pattern parallel scan lines per channel, crossed scan lines between channels Tilt Angle of Scan Lines ± 14 = 28 Forward/ Backward Scan Angle in Non-Nadir Direction ± 8 at the edges Scan Angle Range 6 total per channel, resulting in an effective FOV of Total Scan Rate 4 1) - 6 lines/sec Angular Step Width 2) 3).6.18 Angle Measurement Resolution.1 1) The minimum scan rate depends on the selected laser PRR. 2) The minimum angular step width depends on the selected laser PRR. Data Interfaces Configuration Monitoring Data Output Digitized Data Output Synchronization General Technical Data Power Supply / Power Consumption Main Dimensions (flange diameter x height) Weight Protection Class Max. Flight Altitude operating / not operating Temperature Range operation / storage 3) The maximum angular step width is limited by the maximum scan rate. TCP/IP Ethernet (1/1/1 MBit/s) TCP/IP Ethernet (1/1/1 MBit/s) Dual glass fiber data link to RIEGL Data Recorder DR156(i) Serial RS232 interface, TTL input for 1 pps synchronization pulse, accepts different data formats for GNSS-time information 2-32 V DC / typ. 25 W max. 55 W, depending on integrated optional components Ø 524 mm x 78 mm (without flange mounted carrying handles) approx. 6 kg without any camera but including a typical IMU/GNSS unit approx. 65 kg with optional components IP54 185 ft (56 m) above MSL 4) / 185 ft (56 m) above MSL C up to +4 C / -1 C up to +5 C 4) Mean Sea Level Recommended IMU/GNSS System IMU Accuracy 7) Roll, Pitch.25 Heading.5 IMU Sampling Rate 2 Hz Position Accuracy (typ.).5 m -.1 m 5) 6) Optional Components VQ-156i-DW Primary Camera RGB Sensor Resolution up to 1 MPixel CMOS without FMC or up to 8 MPixel CCD with FMC Sensor Dimensions (diagonal) 67.2 mm (medium format) Focal Length of Camera Lens 5 mm Field of View (FOV) approx. 56.2 x 43.7 Interface USB 3. Data Storage ix-controller Secondary Camera 5) The recommended IMU is listed neither in the European Export Control List (i.e. Annex 1 of Council Regulation 428/29) nor in the Canadian Export Control List. Detailed information on certain cases will be provided on request. 6) The RIEGL VQ-156i-DW Laser Scanning system supports different IMU/GNSS Systems, details on request. Different camera types including thermal or NIR cameras can be integrated, details on request. 7) One sigma values, no GNSS outages, post-processed with base station data RIEGL Laser Measurement Systems GmbH Riedenburgstraße 48 358 Horn, Austria Phone: +43 2982 4211 Fax: +43 2982 421 office@riegl.co.at www.riegl.com Copyright RIEGL Laser Measurement Systems GmbH 217 All rights reserved. Use of this data sheet other than for personal purposes requires RIEGL s written consent. This data sheet is compiled with care. However, errors cannot be fully excluded and alternations might be necessary. RIEGL USA Inc. Orlando, Florida info@rieglusa.com www.rieglusa.com RIEGL Japan Ltd. Tokyo, Japan info@riegl-japan.co.jp www.riegl-japan.co.jp RIEGL China Ltd. Beijing, China info@riegl.cn www.riegl.cn www.riegl.com, RIEGL VQ-156i-DW, 217-11-27