Pushing Lidar to the Limits

High-resolution Bathymetric Lidar from Slow-flying Aircraft
Airborne bathymetric Lidar is an ideal tool to study underwater features in the usually rather clear waters along the coast of Australia. Due to the remoteness of many of the continent’s coastlines, this is often the only economically viable option for large-scale bathymetric mapping at high resolution. A new toolkit consisting of two airborne Lidar systems flown on a small and slow-flying research motorglider was trialled in NW Western Australia. The same technology will be used over the next three years in the context of a comprehensive study of submerged archaeological landscapes of the so-called ’Sea Country’, more than 1,000km... (read more)
2017-02-06 09:15:23

Lead’Air Launches New Multi-use Oblique Camera System

Lead’Air has developed a new, compact five-camera multi-image digital acquisition system (MIDAS), the Helidas, capable of mounting on the nose of a Bell 206B or AS350 Eurocopter with the use of the FAA-approved Meeker mounts. With a few bolts the unit can also be disconnected from the helicopter mount and connected to our simplified table design for fixed wing aircraft. The simple design characteristics make the change fast and efficient. The need for flexibility in the design of our MIDAS has become more apparent as the world of 3D oblique imagery becomes more prevalent in the GIS, design and engineering... (read more)
2016-11-10 11:34:57

UAS Technology in Focus

A UAS intended for mapping, inspection or reconnaissance consists of a mix of elements including aircraft, a ground control station (GCS), on-board navigation sensors, a radio link for manual control of the aircraft, one or more geodata collection sensors and a wireless link for transmitting the data recorded by the geodata collection and navigation sensors to the GCS and PC, laptop or tablet (Figure 1). Usually the aircraft – whether a fixed wing or rotary wing – will be propelled by a battery-powered electric engine. However, the depletion of the battery charge is usually counted in minutes rather than hours.... (read more)
2017-07-26 03:08:13

Monitoring Marine Mammals with UAV

Insitu Pacific, Australia, has concluded the second phase of a trial conducted in partnership with Murdoch University that aims to determine whether unmanned aircraft systems (UAS) are a cost-effective, capable alternative to manned assets for surveying marine mammals. During the two-week operation, Insitu Pacific's ScanEagle UAS captured up to 3,000 images of humpback whales daily. The trial also demonstrated ScanEagle's ability to operate effectively in Class G commercial airspace, a key step towards expanding civil airspace to incorporate unmanned systems more widely.     Insitu Pacific managing director Andrew Duggan says that flying for a long time, at a low... (read more)
2011-10-05 10:27:55

Air France Flight AF 447

In Search of the Missing Plane
On 1st June 2009 Air France flight 447, a scheduled passenger service from Rio de Janeiro (Brazil) to Paris (France), went missing over the Atlantic Ocean. Onboard were 228 people. The aircraft left Brazilian radar surveillance at 01:48hrs. Messages from the onboard aircraft communications and reporting system (ACARS) maintenance system were received between 02:10hrs and 02:14hrs, with five FLR (failure) and nineteen WRN (warning) reports indicating that airspeed sensors were giving inconsistent readings and the autopilot and auto-thrust systems had disengaged. The final message was a cabin pressure (vertical speed) warning at 02:14hrs from location 3° 34' 40"N 30° 22'... (read more)
2009-07-17 12:00:00

Dorset Bypass Plans Utilise LiDAR Data

Dorset's A35 and C6 roads form a crucial link down to the county's south coast. With a view to improving this link, Dorset County Council has commissioned multidisciplinary engineering consultancy Buro Happold to prepare a feasibility study into bypass options. In order to accurately understand the features of the local terrain, the consultancy has used UK-based specialist Bluesky's 3D map system, which creates digital maps captured by aircraft mounted lasers.   Bluesky have also supplied high-resolution aerial photography that has been used to create 3D fly-throughs and visualisations of the resulting designs.   Using 12d Model, a powerful terrain modelling... (read more)
2009-11-19 12:02:18

Measuring a Zero-gravity Plane with a UAV

Surveyors Uli Bauer and Andreas Gelhausen have generated a 3D model of the landing gear of the zero-gravity Airbus A300 ZERO-G – used to perform parabola flights for scientific purposes – that is accurate to +/-5mm. Furthermore, they have used the Aibot X6 UAV to generate a point cloud of the aircraft. After the 25th research campaign of the German Aerospace Center (DLR), the Airbus A300 ZERO-G from the French company Novespace is due to be retired. The aircraft, which has been used for 15 years by DLR for scientific research into microgravity, is to be put on display at... (read more)
2015-02-20 09:31:21

Fully Integrated Large-format Frame Camera for Airborne Operations

Leica Geosystems has announced that its new Z/I DMC IIe large-format frame camera series can be operated fully integrated inside a Leica Geosystems aircraft installation. The Z/I DMC IIe is based on the proven sensor design of the Z/I DMC II using large-format single CCD technology and includes integrated Novatel GNSS/IMU technology. It offers increased airborne storage of 4.8 TByte using four Leica MM30 SSD storage modules, supports the Leica PAV100 stabilised mount and has an integrated Leica FlightPro sensor management system. Today's airborne mapping environment requires flexible aircraft installation and standardised sensor operation. The new Z/I DMCIIe is now... (read more)
2013-06-12 03:42:40

DA42 V1 Breaks 200-knots Barrier

Displaying 21 aerodynamical improvements, the newly developed DA42 V1 marks another milestone in the history of Diamond Aircraft Austria. The top speed of the aircraft is over 200 knots in FL180 (18,000ft), and the DA42 is often used for remote-sensing survey flights.     Powered by 340hp from two Austro Engines AE300 and with a normal operational weight, the take-off roll (no wind) is less than 1,000ft. The climb rate is 1,900ft at sea level and 900ft on FL180 at a climb speed of 120 knots indicated. These results are based on preliminary information of the first test flights. (read more)
2011-12-27 09:18:22

DA42 MPP Obtains Russian Surveillance Certification

Diamond Airborne Sensing recently received certification for the DA42 MPP in surveillance and laser scanning configuration for Russia. The DA42 MPP is able to carry daylight and thermal cameras, and is linked to ground stations with satcom and/or line of sight downlink systems. Survey equipment, such as LIDAR or hyperspectral scanners and digital cameras, can be carried in the belly pod underneath the fuselage.   The Airborne Sensing segment is gaining more and more acceptance within the Diamond Aircraft group. Both, the surveillance as well as in the geodetic market are emerging. Diamond Airborne Sensing expects to double sales figures... (read more)
2008-12-11 03:14:28
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