Full Waveform Digitizing, Dual Channel Airborne LiDAR Scanning System for Ultra Wide Area Mapping

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1 Full Waveform Digitizing, Dual Channel Airborne LiDAR Scanning System for Ultra Wide Area Mapping RIEGL LMS-Q56 high laser pulse repetition rate up to 8 khz digitization electronics for full waveform data innovative forward/backward looking capability single multifacet polygon mirror for beam deflection integrated multi-megapixel aerial medium format camera integrated secondary camera (e.g. IR-camera) integrated inertial navigation system and GNSS receiver fiber coupled high speed data interface to single RIEGL Data Recorder single power supply various interfaces to external cameras, GNSS etc. mounting flange for interfacing with typical hatches and stabilized platforms compact and robust housing The new high performance, fully integrated long-range airborne laser scanner system RIEGL LMS-Q56 is a cutting-edge tool for a variety of airborne surveying missions. The two channel scanner makes use of powerful laser sources, Multiple-Time-Around (MTA) processing, echo digitization and waveform analysis. That allows operation at varying flight altitudes and is therefore ideally suited for aerial survey of ultra wide areas as well as of complex urban environments. The RIEGL LMS-Q56 can be operated at a maximum pulse repetition rate of 8 khz providing an effective measurement rate of 5, measurements on the ground, and operates at an altitude of up to 5,5 ft. Usually occurring range ambiguities at this measurement rate are automatically resolved by RIEGL s multiple time around processing software RiMTA, handling more than pulses in the air simultaneously. This enables much faster and more efficient flight planning and safer flights. The RIEGL LMS-Q56 comes with a unique and innovative forward/backward looking capability. This enables capturing data from multiple angles more effectively and more accurately at high point density. With its large field of view of 58 degrees and its widely variable scan parameters the system accounts for highest efficiency of scan data acquisition in its class. The system is equipped with a seamlessly integrated IMU/GNSS system. Optionally, an already available IMU sensor may be easily integrated; making the RIEGL LMS-Q56 a cost-effective solution for system upgrades. An 8 megapixel RBG camera and the capability to integrate a secondary IR camera complete the system. With all individual components integrated into one single instrument of compact design, suited for gyro-stabilized leveling mounts, the system installation is outstandingly easy and straight-forward. Applications: Ultra Wide Area / High Altitude Mapping Mapping of Complex Urban Environments Glacier & Snowfield Mapping City Modeling Mapping of Lakesides & River Banks Agriculture & Forestry Corridor Mapping visit our website Airborne Laser Scanning

2 RIEGL LMS-Q56 Scan Pattern effective 8 Each channel delivers straight parallel scan lines. The scan lines of the two channels are tilted against each other by 8 degrees providing an optimum distribution of the measurements on the ground invariant to changes in terrain height. Tilt Angle of Scan Lines Forward/Backward Look in Non-Nadir Direction RIEGL LMS-Q56 Housing +/- +/-8 at the edges

3 RIEGL LMS-Q56 Main Dimensions

4 RIEGL LMS-Q56 System A minimum number of system components and external cabling is required for easy and quick installation in aircrafts.

5 RIEGL LMS-Q56 Installation Examples RIEGL LMS-Q56 installed in the nose pod of fixed-wing aircraft DA MPP RIEGL LMS-56 installed on GSM- gyro-stabilized platform to be used in a helicopter or fixed-wing aircraft RIEGL LMS-Q56 installed on GSM- stabilized platform in the fixed-wing aircraft TECNAM MMA RIEGL LMS-Q56 installed on GSM- stabilized platform in the fixed-wing aircraft A-VIATOR AP68PT-6 5

6 Measurement Range & Point Density RIEGL LMS-Q56 PRR = khz, laser power level % MTA 5 visibility visibility km Point Density [pts/m ] ft 7 ft 9 ft ft 5 ft (5 m) 7 m 6 ft (86 m) 8 m 7 ft (6 m) 5 m 9 ft (7 m) 7 m ft (5 m) 76 m 5 ft Speed [kn] PRR = khz, laser power level % 6 MTA MTA MTA 5 Example: LMS-Q56 at, pulses/sec, laser power level % Altitude = 6ft AGL, Speed = visibility visibility km Point Density [pts/m ] ft Results: Point Density ~. pts/m² Spatial Sampling Frequency ~.6 pts/m Covered Area per Time ~ km²/h 7 ft 57 ft 5 ft (7 m) 5 ft (7 m) 57 ft (7 m) 7 ft ( m) 9 ft (87 m) 5 ft 5 ft m 5 m 95 m 9 m m Speed [kn] PRR = 6 khz, laser power level % MTA 8 MTA 7 5 MTA Example: LMS-Q56 at, pulses/sec, laser power level % Altitude = 57ft AGL, Speed = 8 visibility visibility km Point Density [pts/m ] Results: Point Density ~. pts/m² Spatial Sampling Frequency ~ pts/m Covered Area per Time ~ 5 km²/h Swath width ft (98 m) ft ( m) 5 ft (55 m) 6 ft (95 m) 8 ft ( m) 5 ft 6 ft 8 ft ft ft 9 m 7 m 7 m 9 m 7 m Speed [kn] Example: LMS-Q56 at 6, pulses/sec, laser power level % Altitude = 5ft AGL, Speed = 7 kn Results: Point Density ~ 6. pts/m² Spatial Sampling Frequency ~.8 pts/m Covered Area per Time ~ 8 km²/h The following conditions are assumed for the ambiguity resolved by multiple-time-around (MTA) processing & flight planning target size laser footprint average ambient brightness scan angle 6 roll angle ±5 Assumptions for calculation of the Covered Area per Time % overlap of neighboring flight strips. This overlap covers a roll angle of ±5 or a reduction of flight altitude AGL of %. Definition of the Spatial Sampling Frequency The Spatial Sampling Frequency is the reciprocal of the 95th percentile of the distribution function of the maximum distances between neighboring scan points. When considering any individual scan point, the probability to find its most distant neighbor within the reciprocal of the Spatial Sampling Frequency is 95%. 6

7 Measurement Range & Point Density RIEGL LMS-Q56 PRR = 8 khz, laser power level % PRR = 8 khz, laser power level 5% MTA 8 MTA MTA 6 8 MTA 8 MTA visibility visibility visibility visibility km Example: LMS-Q56 at 8, pulses/sec, laser power level % Altitude = 7ft AGL, Speed = 85 kn Point Density [pts/m ] Point Density [pts/m ] 5 Speed [kn] ft (8 m) 5 ft (7 m) ft ( m) 56 ft (7 m) 7 ft (9 m) 7 ft 5 ft ft 56 ft 7 ft 9 ft (58 m) 5 ft (76 m) ft ( m) ft ( m) 56 ft (7 m) 5 ft ft ft 56 ft 9 ft 9 m m 5 m 9 m 6 m Results: Point Density ~.8 pts/m² Spatial Sampling Frequency ~ pts/m Covered Area per Time ~ km²/h 65 m 85 m m 7 m 9 m Speed [kn] Example: LMS-Q56 at 8, pulses/sec, laser power level 5% Altitude = 5ft AGL, Speed = 7 kn PRR = 8 khz, laser power level 5% Results: Point Density ~ 6.8 pts/m² Spatial Sampling Frequency ~. pts/m Covered Area per Time ~ 95 km²/h 5 MTA visibility visibility km Point Density [pts/m ] ft ft 8 ft ft ft 9 ft (58 m) ft (7 m) 8 ft (85 m) ft ( m) ft ( m) 65 m 79 m 96 m m 7 m Speed [kn] Example: LMS-Q56 at 8, pulses/sec, laser power level 5% Altitude = 8ft AGL, Speed = 9 kn The following conditions are assumed for the ambiguity resolved by multiple-time-around (MTA) processing & flight planning target size laser footprint average ambient brightness scan angle 6 roll angle ±5 Results: Point Density ~.6 pts/m² Spatial Sampling Frequency ~.8 pts/m Covered Area per Time ~ km²/h Assumptions for calculation of the Covered Area per Time % overlap of neighboring flight strips. This overlap covers a roll angle of ±5 or a reduction of flight altitude AGL of %. Definition of the Spatial Sampling Frequency The Spatial Sampling Frequency is the reciprocal of the 95th percentile of the distribution function of the maximum distances between neighboring scan points. When considering any individual scan point, the probability to find its most distant neighbor within the reciprocal of the Spatial Sampling Frequency is 95%. 7

8 Measurement Range & Point Density RIEGL LMS-Q56 PRR = 8 khz, laser power level % 6 8 visibility visibility km Point Density [pts/m ] ft (7 m) 5 ft (6 m) 9 ft (58 m) ft (7 m) ft (9 m) ft 5 ft 9 ft ft ft m 5 m 65 m 8 m m Speed [kn] Example: LMS-Q56 at 8, pulses/sec, laser power level % Altitude = ft AGL, Speed = 8 kn Results: Point Density ~ pts/m² Spatial Sampling Frequency ~. pts/m Covered Area per Time ~ 9 km²/h PRR = 8 khz, laser power level 6% visibility visibility km Point Density [pts/m ] ft 8 ft ft ft 85 ft (6 m) ft ( m) ft ( m) 8 ft (55 m) ft (67 m) 85 ft 9 m 8 m 8 m 6 m 75 m Speed [kn] Example: LMS-Q56 at 8, pulses/sec, laser power level 6% Altitude = 85ft AGL, Speed = 7 kn Results: Point Density ~ 9. pts/m² Spatial Sampling Frequency ~ pts/m Covered Area per Time ~ km²/h The following conditions are assumed for the ambiguity resolved by multiple-time-around (MTA) processing & flight planning target size laser footprint average ambient brightness scan angle 6 roll angle ±5 Assumptions for calculation of the Covered Area per Time % overlap of neighboring flight strips. This overlap covers a roll angle of ±5 or a reduction of flight altitude AGL of %. Definition of the Spatial Sampling Frequency The Spatial Sampling Frequency is the reciprocal of the 95th percentile of the distribution function of the maximum distances between neighboring scan points. When considering any individual scan point, the probability to find its most distant neighbor within the reciprocal of the Spatial Sampling Frequency is 95%. 8

9 Technical Data RIEGL LMS-Q56 Laser Product Classification Class B Laser Product according to IEC685-:7 The following clause applies for instruments delivered into the United States: Complies with CFR. and. except for deviations pursuant to Laser Notice No. 5, dated June, 7. The instrument must be used only in combination with the appropriate laser safety box. Source < mw Source < mw ns 6 nm Range Measurement Performance Full Laser Power as a function of laser power setting, PRR, and target reflectivity Laser Power Level % Laser Pulse Repetition Rate (PRR) khz khz 6 khz 8 khz ) ) Max. Measuring Range natural targets % m 5 m m 7 m natural targets 6 % 58 m 5 m 5 m m Max. Operating Altitude 7 m m 7 m m Above Ground Level (AGL) ) ) 55 ft 7 ft ft ft NOHD ) 6 m m 7 m 5 m 5) 85 m 5 m m 5 m ) The following conditions are assumed: target is larger than the footprint of the laser beam average ambient brightness visibility km perpendicular angle of incidence ambiguity resolved by multiple-time-around processing ) Reflectivity ρ 6 %, max. scan angle 6, additional roll angle ± 5 ) In bright sunlight the operational range may be considerably shorter and the operational flight altitude may be considerably lower than under an overcast sky. ) Nominal Ocular Hazard Distance, based upon MPE according to IEC685-:7, for single pulse condition 5) Extended Nominal Ocular Hazard Distance, based upon MPE according to IEC685-:7, for single pulse condition Reduced Laser Power Laser Power Level 5% 5% % 6% Laser Pulse Repetition Rate (PRR) 8 khz 8 khz 8 khz 8 khz 6) 8) Max. Measuring Range natural targets % m 5 m m 8 m natural targets 6 % m m 8 m 5 m Max. Operating Altitude 6 m 95 m 5 m m Above Ground Level (AGL) 7) 8) 86 ft 6 ft 8 ft 6 ft NOHD 9) m 87 m 59 m 8 m ) 7 m 6 m m 95 m 6) The following conditions are assumed: target is larger than the footprint of the laser beam average ambient brightness visibility km perpendicular angle of incidence ambiguity resolved by multiple-time-around processing 7) Reflectivity ρ 6 %, max. scan angle 6, additional roll angle ± 5 8) In bright sunlight the operational range may be considerably shorter and the operational flight altitude may be considerably lower than under an overcast sky. 9) Nominal Ocular Hazard Distance, based upon MPE according to IEC685-:7, viewing a single scan line ) Extended Nominal Ocular Hazard Distance, based upon MPE according to IEC685-:7, viewing a single scan line Minimum Range ) 5 m ) ) Accuracy mm ) ) Precision mm Laser Pulse Repetition Rate up to 8 khz Effective Measurement Rate up to 5 6 scan angle Laser Wavelength near infrared Laser Beam Divergence 5).8 /e Number of Targets per Pulse digitized waveform processing: unlimited 6) monitoring data output: first pulse Scanner Performance Scanning Mechanism rotating polygon mirror Scan Pattern parallel scan lines per channel, crossed scan lines between channels Tilt Angle of Scan Lines ± = 8 Forward/ Backward Look in Non-Nadir Direction ± 8 at the edges Scan Angle Range 6 total per channel, resulting in an effective of Scan Speed 8 - lines/sec laser power level 5% - lines/sec laser power level < 5% Angular Step Width laser power level laser power level < 5% Angle Measurement Resolution. ) Limitation for range measurement capability, does not consider laser safety! ) Standard deviation one 5 m range under RIEGL test conditions. ) Accuracy is the degree of conformity of a measured quantity to its actual (true) value. ) Precision, also called reproducibility or repeatability, is the degree to which further measurements show the same result. 5) Beam divergence defined via the /e-drop-off in power density. Corresponds to.5 /e. 6) Practically limited only by the maximum data rate allowed for the RIEGL Data Recorder. 7) Minimum scan speed increasing linearly to 6 8 Hz laser power 5% 8) Minimum scan speed increasing linearly to 5 8 Hz laser power < 5% 9) Angle between consecutive laser shots within a scan line, user adjustable Technical Data to be continued at page 9

10 Technical Data RIEGL LMS-Q56 (continued) Intensity Measurement Data Interfaces Configuration Monitoring Data Output Digitized Data Output Synchronization General Technical Data Power Supply / Current Consumption Main Dimensions (L x W x H) Weight Protection Class Max. Altitude operating / not operating Temperature Range For each echo signal, high-resolution 6-bit intensity information is provided which can be used for target discrimination and/or identification/classification. TCP/IP Ethernet (/ MBit) TCP/IP Ethernet (/ MBit) Dual glass fiber data link to RIEGL Data Recorder DR56 Serial RS interface, TTL input for pps synchronization pulse, accepts different data formats for GNSS-time information 8 - V DC / approx. VDC x x 78 mm, mounting flange diameter 5 mm approx. 6 kg without optional components approx. 69 kg with optional components IP5 85 ft (56 m) above Mean Sea Level MSL / 85 ft (56 m) above MSL C up to + C (operation) / - C up to +5 C (storage) Optional Components LMS-Q56 Please note: The INS and the camera configuration of the RIEGL LMS-Q56 Laser Scanning System can be modified to the customer s requirements. Integrated Digital Cameras RGB Camera Sensor Resolution 8 MPixel Sensor Dimensions (diagonal) 67. mm (medium format) Focal Length of Camera Lens 55 mm Field of View () approx. 5 x Interface USB. Data Storage via GigE to RIEGL Data Recorder DR56 Infrared Camera (optional) Spectral Range µm Sensor Resolution 6 x 8 Pixel Sensor Dimensions (diagonal).6 mm Focal Length of Camera Lens. mm Field of View () approx. 5 x Interface GigE Data Storage via GigE to RIEGL Data Recorder DR56 Integrated IMU/GNSS ) IMU Accuracy ) Roll, Pitch.5 Heading.8 IMU Sampling Rate Hz Position Accuracy (typ.).5 m -. m ) The installed IMU is listed neither in the European Export Control List (i.e. Annex of Council Regulation 8/9) nor in the Canadian Export Control List. Detailed information on certain cases will be provided on request. ) One sigma values, no GNSS outages, post-processed with base station data RIEGL Laser Measurement Systems GmbH Riedenburgstraße 8 58 Horn, Austria Phone: + 98 Fax: + 98 office@riegl.co.at Information contained herein is believed to be accurate and reliable. However, no responsibility is assumed by RIEGL for its use. Technical data are subject to change without notice. RIEGL USA Inc. Orlando, Florida info@rieglusa.com RIEGL Japan Ltd. Tokyo, Japan info@riegl-japan.co.jp RIEGL China Ltd. Beijing, China info@riegl.cn Data Sheet, RIEGL LMS-Q56, 8--