GM8000 - Tow Behind - Multi-channel GPR

Introdution

The GM8000 Multi-Channel Ground Penetrating Radar system is a high-performance, array-based GPR solution built for rapid, large-area subsurface investigation and infrastructure assessment. Designed to maximise coverage speed, data density, and spatial accuracy, it delivers reliable, high-quality results on projects where efficiency and precision are critical.

By combining multi-channel acquisition with advanced positioning and real-time processing, the GM8000 enables rapid scanning of extensive assets while maintaining consistent data quality. It is selected by engineers, asset owners and consultants who require reliable, scalable GPR workflows for network-level assessment, condition monitoring and digital asset mapping.

Applications

•  Bridge deck condition assessment and deterioration mapping
•  Concrete cover measurement and moisture distribution analysis
•  Asphalt layer thickness evaluation across road networks
•  Utility mapping including fiber optic and buried services
•  Detection of subsurface voids and cavities
•  Large-area infrastructure surveys requiring continuous data capture
•  Georeferenced subsurface mapping for transport corridors
•  Archaeological prospection over wide survey areas
•  Unexploded ordnance (UXO) detection surveys

Features

Hardware and acquisition architecture:

• Multi-channel GPR array enables simultaneous data collection across wide swaths, significantly increasing survey productivity.
• Modular array configurations support adaptation to different survey types, including bridge inspection and utility mapping.
• Integrated positioning using GNSS and visual odometry supports accurate georeferenced data capture.

Data quality and coverage:

• High-density data acquisition improves subsurface resolution and continuity across large areas.
• Consistent channel spacing supports uniform coverage and reduces gaps typical of single-channel systems.
• Real-time processing and filtering improve signal clarity during acquisition, reducing the need for repeat surveys.

 Usability and workflow efficiency:

• Designed for continuous scanning workflows, enabling efficient coverage of roads, bridge decks and large slabs.
• Field calibration tools support reliable setup and repeatable measurements.
• Integrated annotation tools allow tagging, voice notes and image capture directly during acquisition.
• Immediate generation of CAD and GIS-ready outputs supports faster decision-making and reporting.

GX1 and GX2 Antenna Arrays

The GM8000 system supports interchangeable multi-channel antenna arrays, allowing users to configure the system based on survey requirements, resolution needs and coverage objectives.

GX1 Array:

• High-channel-count configuration designed for maximum coverage and productivity over large areas.
• Suitable for road, bridge deck and network-level surveys where continuous, high-speed data acquisition is required
• Provides dense spatial sampling to support detailed condition mapping and asset-level analysis.

GX2 Array:

• More compact multi-channel configuration suited to projects requiring increased manoeuvrability.
• Effective for urban environments, confined spaces or targeted investigations where access is constrained.
• Balances coverage and flexibility while maintaining multi-channel data quality advantages over single-channel systems.

Operational flexibility:

• Array selection enables alignment of system capability with project scope, from high-speed corridor surveys to focused site investigations.
• Consistent data structure across arrays supports streamlined processing and interpretation regardless of configuration.

Firmware

The onboard firmware manages synchronized multi-channel acquisition, ensuring consistent timing and alignment across all channels during high-speed surveys. This enables accurate reconstruction of subsurface conditions across wide survey paths.

Real-time signal processing within the firmware supports dynamic gain control, noise reduction and background filtering, improving data clarity during collection. Field calibration functions, including distance and positioning calibration, help maintain measurement accuracy across varying site conditions.

Ongoing firmware updates support enhancements to acquisition stability, processing efficiency and integration with positioning systems, contributing to improved field productivity and data reliability.

Software

The GM8000 is supported by a comprehensive software ecosystem for both field acquisition and advanced post-processing. The system enables immediate visualisation and interpretation of data, while also supporting detailed analysis workflows for engineering and asset management applications.

• Visualisation modes include A-scan, B-scan and C-scan, with both migrated and non-migrated views.
• Time-slice and geo-referenced mapping views support layer analysis and spatial interpretation.
• 3D multi-channel data processing enables detailed assessment of subsurface conditions across large areas.
• Signal processing tools include gain control, filtering, background removal and noise reduction.
• Hyperbola fitting tools assist with target identification and interpretation.
• Integration with GNSS data enables mapping over satellite imagery and alignment with survey coordinates.
• Export formats include SEG-Y for advanced processing, along with CAD and GIS outputs such as SHP and KML.
• Cloud-based workspace supports data storage, collaboration, remote access and project management.
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The combined field and office software workflow allows users to move efficiently from acquisition to deliverables, supporting clear communication of results and integration into engineering and asset management systems.

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