Geosun GS 130X 120m Compact UAV LiDAR Mapping System

Compact UAV LiDAR for detailed 3D mapping

The Geosun GS-130X Series is an integrated LiDAR mapping payload designed for professional drone surveying, engineering, GIS and inspection work. It brings the laser scanner, GNSS positioning, inertial navigation and RGB imaging required for georeferenced point-cloud collection together in one compact unit, making it practical for multi-rotor drones and VTOL aircraft where payload weight and survey efficiency both matter.

Unlike long-range LiDAR systems intended to fly hundreds of metres above the project, the GS-130X is designed around lower-altitude, higher-detail data collection. Its laser provides a measuring range of up to 120 m at 10% reflectivity, making the system particularly suitable for construction sites, terrain surveys, power infrastructure, mines, forestry and other projects where the drone can work relatively close to the surface or object being measured.

32-channel LiDAR with up to 1.28 million points per second

The GS-130X uses a 32-channel laser scanner capable of recording up to 1,280,000 points per second. A high point acquisition rate allows the sensor to capture dense 3D information while the aircraft is moving, helping survey teams represent terrain, buildings, vegetation and infrastructure in detail.

The scanner uses dual echoes, meaning a laser pulse can provide more than one measurement when it interacts with different surfaces. This is useful around vegetation, cables and other complex environments where several objects may lie along the same laser path.

Useful point density at practical UAV flight heights

Geosun’s example operating figures show why the GS-130X is suited to detailed aerial mapping. At an aircraft speed of 10 m/s, the system is specified at approximately 228 points/m² from 50 m and 160 points/m² from 100 m. The corresponding example coverage figures are around 1 km² and 1.68 km² per flight respectively under the manufacturer’s stated conditions.

In real projects, point density and coverage will vary with flight height, speed, overlap, flight pattern, terrain and the surfaces being measured. Flying lower generally increases the amount of geometric detail, while increasing altitude can improve coverage efficiency.

Integrated GNSS and inertial positioning

Accurate airborne LiDAR requires more than measuring the distance between the scanner and the ground. The system also needs to know precisely where the aircraft is located and how the sensor is oriented at the instant each laser point is recorded. The GS-130X therefore combines its LiDAR with a high-rate GNSS and inertial positioning system operating at 200 Hz.

The positioning system supports GPS, GLONASS, BeiDou and Galileo signals. This multi-constellation support provides the trajectory data needed to georeference the laser measurements during post-processing and produce a usable spatial point cloud.

AGS302 and AGS303 configurations

The GS-130X Series is available from Global GPS Systems in AGS302 and AGS303 configurations. Both use the same basic 120 m 32-channel LiDAR concept, 26 MP camera and compact UAV form factor, but their attitude specifications differ.

The AGS302 documentation specifies pitch and roll accuracy of approximately 0.015° and heading accuracy of 0.040°. The AGS303 increases the stated attitude performance to approximately 0.005° pitch and roll and 0.017° heading. This difference is relevant on projects where the quality of the calculated sensor orientation has a stronger influence on the final point-cloud accuracy, especially as flight height increases.

26 MP camera for colour point clouds and visual context

An integrated 26 MP RGB camera with an 83° field of view records imagery alongside the laser data. This imagery can be used to add colour to the point cloud and provides visual context when interpreting terrain, buildings, vegetation and infrastructure.

For surveyors and GIS teams, having imagery and LiDAR collected during the same mission makes it easier to recognise objects in the final dataset and reduces the need to perform an additional photographic flight purely for visual reference.

Lightweight design for professional drones

The AGS302 and AGS303 product documentation lists a system weight of approximately 1.26 kg and dimensions of roughly 11.5 × 11 × 12 cm. This relatively compact form factor helps make LiDAR accessible to professional UAVs without requiring the much larger aircraft normally associated with heavy long-range airborne scanning systems.

The system is designed for multi-rotor and VTOL platforms and operates over a stated temperature range of approximately -20°C to +55°C. Platform compatibility still depends on payload capacity, power supply, mounting, flight time and the required survey configuration.

Topographic surveying and construction mapping

For survey and construction teams, the GS-130X can collect dense elevation and surface information across sites that would take considerably longer to measure point by point from the ground. The resulting LiDAR data can support terrain models, earthwork analysis, site documentation, planning and other engineering workflows.

Because LiDAR measures geometry directly, it can also be useful on surfaces where conventional image-only photogrammetry is more difficult, although project accuracy should always be evaluated against the required deliverable and control workflow.

Power lines, mining, forestry and infrastructure

The combination of high point rate, dual echoes and airborne operation makes the GS-130X suitable for more than conventional land surveying. Geosun demonstrates the system for power-line inspection, mine surveying and water-related infrastructure projects, while its general application areas also include forestry, agriculture and urban planning.

For utility surveys, LiDAR can capture wires, poles, surrounding terrain and vegetation in three dimensions. In mining and earthworks, it can document slopes, excavation areas and stockpiles. Forestry teams can use the multiple returns and dense point cloud to obtain information from different vegetation levels where site conditions allow.

Point-cloud processing workflow

The GS-130X workflow includes Geosun’s Shuttle software for trajectory processing and gAirHawk for LiDAR point-cloud processing. The positioning trajectory is combined with the laser observations to calculate the geographic location of the measured points, after which the point cloud can be taken into suitable survey, GIS, CAD, engineering or specialist LiDAR software.

An optional route-planning workflow can also be used to prepare UAV missions. For repetitive or larger surveys, proper flight planning is important for achieving the required overlap, point density and coverage while making efficient use of available flight time.

Who is the GS-130X designed for?

The GS-130X is particularly relevant for survey companies, construction teams, drone service providers, civil engineers, GIS specialists, utilities, forestry professionals and mine operators that need detailed airborne 3D data without stepping up to a heavier long-range LiDAR payload. Its 120 m class range and high point rate make it a practical choice for low-altitude professional mapping where detail and compact payload size are more important than extreme operating distance.

Choosing the right GS-130X configuration

The choice between AGS302 and AGS303 should be based on the required attitude performance, flight height, expected accuracy and final deliverables rather than laser range alone. Aircraft payload capacity, ground control strategy, vegetation, required point density and processing workflow should also be considered before configuring a complete survey system.

Global GPS Systems can help match the Geosun GS-130X configuration to your UAV platform and project requirements, including the choice between AGS302 and AGS303, expected survey workflow and the supporting hardware required for professional LiDAR data collection.