Geosun GS 260H 300m UAV LiDAR Mapping System

Mid-range UAV LiDAR for professional aerial mapping

The Geosun GS-260H is an integrated airborne LiDAR system designed for surveyors, drone operators, engineers, construction teams and GIS professionals who need to collect detailed three-dimensional data efficiently from the air. The system combines a 32-channel laser scanner, GNSS satellite positioning, an inertial navigation system and a high-resolution RGB camera in one compact payload, allowing georeferenced point-cloud data and imagery to be collected during the same mission.

With a maximum measuring range of 300 m and a system weight of only around 1.1 kg, the GS-260H provides a useful balance between working distance and payload size. It is especially suited to projects where a compact low-altitude scanner does not provide enough range, but a much heavier long-range system would be unnecessary.

32-channel LiDAR with up to 1.92 million points per second

The GS-260H uses a 32-channel laser scanner capable of recording up to 1,920,000 points per second in triple-return operation. The high acquisition rate allows the system to capture dense terrain and object information while the aircraft is moving at normal survey speeds.

For practical mapping work, this gives survey teams enough point density to represent terrain, vegetation, infrastructure and structures in detail without needing to fly extremely slowly. Actual density still depends on altitude, speed, flight-line spacing and overlap.

300 metre maximum measuring range

The GS-260H provides a maximum LiDAR range of approximately 300 m. Geosun also specifies around 80 m at 10% target reflectivity, which illustrates how practical range changes with the surface being scanned.

This is important in fieldwork because darker vegetation, asphalt and low-reflectivity materials usually produce shorter usable ranges than brighter or more reflective surfaces. Flight altitude should therefore be selected around the actual project environment rather than the maximum sensor specification alone.

Triple returns for vegetation and complex scenes

The scanner supports triple laser echoes. A single pulse can therefore provide measurements from more than one surface when it passes through vegetation or encounters several objects at different heights.

For forestry and terrain surveys, this can provide additional information from the canopy, lower vegetation and surfaces underneath. Multiple returns are also useful for power lines and infrastructure, where wires, poles, vegetation and ground can occupy the same vertical space.

10 cm absolute accuracy at 150 metres

The current GS-260H specification gives an absolute accuracy of approximately 10 cm at 150 m. The LiDAR ranging accuracy itself is specified at approximately 0.5 cm, while final georeferenced accuracy also depends on GNSS and inertial positioning.

For surveyors, it is important to distinguish sensor ranging performance from total system accuracy. Flight height, GNSS correction quality, trajectory processing, aircraft motion, boresight calibration and project control can all influence the final point cloud.

gSpin 210 GNSS and INS positioning

The GS-260H integrates Geosun’s gSpin 210 GNSS/INS unit with a 200 Hz IMU update rate. The positioning system supports GPS, GLONASS, Galileo and BeiDou signals and records the position and attitude of the payload continuously throughout the flight.

The published specifications list position accuracy of ≤0.05 m, pitch and roll accuracy of 0.015° and heading accuracy of 0.040°. During processing, this trajectory information is combined with the LiDAR measurements so each point can be placed in the correct geographic position.

Wide 360 degree LiDAR coverage

The scanner provides approximately 360° horizontal coverage with a 40.3° vertical field of view. This scanning geometry allows the system to collect information not only directly beneath the aircraft but also on surrounding surfaces and vertical features.

This is useful when surveying building façades, utility structures, vegetation and complex terrain, where a narrow downward-looking scan may miss important geometry.

26 MP RGB camera for colourised point clouds

An integrated 26 MP RGB camera records imagery alongside the LiDAR data. The camera uses a 16 mm focal length in the current specification and provides visual information that can be used to colourise the point cloud and improve object recognition.

For surveyors and GIS users, colourised LiDAR makes it easier to identify roads, buildings, vegetation, cables and other features. Collecting imagery and LiDAR in the same mission can also reduce the need for a separate photographic survey.

Topographic surveying

For topographic projects, the GS-260H can collect a dense three-dimensional representation of the ground and surrounding features over a much larger area than conventional point-by-point field measurement. The resulting point cloud can support terrain models, site surveys, planning, engineering design and earthwork analysis.

The manufacturer provides an example point density of approximately 50 points/m² at 150 m altitude and 10 m/s. This provides a useful reference when estimating whether the system is suitable for the level of detail required on a specific project.

Power-line and utility corridor mapping

Power-line patrol is one of the main stated applications of the GS-260H. The combination of triple returns, 360° scanning and high point density allows conductors, poles, vegetation and surrounding terrain to be captured in three dimensions.

For utility teams, this can support corridor documentation, vegetation-clearance analysis and asset mapping while reducing the need to manually measure difficult-to-access features from the ground.

Forestry and vegetation surveys

The GS-260H is also designed for forestry and vegetation monitoring. Multiple laser returns can provide information from different canopy levels and, where openings exist, from the terrain beneath the vegetation.

This makes the system useful for generating terrain models, studying canopy structure and supporting forestry or land-management projects where both vegetation and ground geometry matter.

Mining and earthworks

Mining and construction teams can use the GS-260H to document open pits, excavation areas, stockpiles, slopes and changing terrain. Regular UAV flights can provide comparable point clouds for volume calculations and progress monitoring.

Because the payload is relatively light, it is practical for repeat surveys where frequent data collection is more useful than occasional flights with a heavier airborne system.

Urban mapping and construction projects

Geosun also positions the GS-260H for construction and smart-city applications. Its combination of LiDAR and RGB imagery allows buildings, roads, vegetation and urban infrastructure to be recorded in a single flight.

The wide scan geometry is especially useful around vertical structures. Geosun has demonstrated the system for building and park mapping at flight heights above the surrounding structures, producing complete coloured point clouds for 3D modelling.

Multi-rotor VTOL and vehicle compatibility

The GS-260H can be integrated with multi-rotor UAVs, VTOL aircraft and suitable vehicle platforms. This gives mapping companies flexibility to select the carrier according to the survey.

Multi-rotor drones are practical for construction sites and smaller areas where precise take-off and landing are important. VTOL aircraft are better suited to longer corridors and larger areas, while vehicle mounting allows the sensor to be used for suitable mobile-mapping projects.

Lightweight design for professional UAVs

At approximately 1.1 kg, the GS-260H is considerably lighter than many traditional airborne LiDAR systems. Its dimensions are approximately 14.4 × 10.9 × 12 cm, helping it fit professional UAV platforms without requiring an exceptionally large aircraft.

The system operates from a 12–24 V supply, consumes around 20 W and is designed for field use across a stated operating temperature range of approximately -20°C to +55°C.

Storage and field workflow

The GS-260H includes 64 GB of internal storage and supports up to a 128 GB TF card. This provides space for LiDAR, trajectory and image data during professional mapping missions.

Survey planning should account for flight duration, point density, image capture, storage and aircraft endurance so the complete project can be covered efficiently without unnecessary data gaps.

Point-cloud processing

After the flight, the GNSS/INS trajectory and LiDAR data are processed together to create a georeferenced point cloud. Geosun provides point-cloud processing software that synchronises trajectory, laser and camera information and outputs standard formats for further processing.

The processed data can then be used in compatible surveying, CAD, GIS, forestry, mining, engineering and point-cloud software depending on the required deliverables.

Who is the Geosun GS-260H for?

The GS-260H is particularly suitable for survey companies, construction professionals, UAV service providers, civil engineers, utilities, forestry specialists, mining companies and GIS teams that need more working range than a compact low-altitude LiDAR system can provide but still want to keep UAV payload weight low.

Its strongest combination is the 300 m maximum range, 1.92 million point-per-second acquisition rate, triple returns, integrated GNSS/INS and 1.1 kg weight. This makes it a practical mid-range option for professional aerial mapping.

Buying the Geosun GS-260H from Global GPS Systems

The correct LiDAR setup depends on required accuracy, point density, flight altitude, terrain, vegetation, aircraft capacity and final deliverables. Global GPS Systems can help determine whether the Geosun GS-260H fits your UAV and survey workflow and advise on the supporting GNSS, flight-planning and point-cloud processing setup for professional mapping projects.