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GPR / georadar

Aerial georadar (GPR) on UAS

Non-invasive mapping of subsurface structures using drones with precise geolocation and fast area-wide data collection.

We help reveal underground utilities, drainage systems, voids, historical structures and other hidden anomalies without excavation. Integrating GPR on unmanned systems means faster, safer and more efficient area surveys.

Aerial GPR survey – drone measurement visualisation

RTK accuracy

georeferencing

Grid mapping

systematic capture

Non-invasive

no excavation

Outputs

2D / 3D

Client value

What aerial GPR survey helps you uncover

We translate the technology into the language of projects, asset management and investment.

Underground infrastructure

Detection of pipes, drains, sewer branches, historical routes and other utility networks.

Hidden subsurface anomalies

Locating voids, disturbed zones, inhomogeneities and suspicious structures in the subsoil.

Historic estates and chateau grounds

Gentle survey without disturbing sensitive environments – suitable for heritage and archaeology-sensitive sites.

Decision-ready deliverables

Accurate data for designers, municipalities, site managers and investors before revitalisation or construction.

Principle

How GPR on a drone works

Clear and professional – without unnecessary jargon.

Ground-penetrating radar (GPR) uses electromagnetic waves that penetrate the subsoil and reflect off material boundaries with different properties. It identifies changes in underground structure, objects, utilities or voids.

UAS integration brings a key advantage over conventional methods: fast systematic area coverage, precise georeferencing and efficient capture even on large or hard-to-access sites.

Three-step overview

  1. 1

    Grid flight

    The drone systematically covers the site on a chosen grid.

  2. 2

    Signal into subsoil

    The radar emits pulses and records reflections from material boundaries.

  3. 3

    Interpretation

    Software and analysts convert data into anomalies and map deliverables.

Parameters

Technical parameters and accuracy

A framework that makes sense for designers and investors – final settings always depend on the site.

Mapping mode

Grid mapping, e.g. 1 × 1 m

Geolocation

RTK / GNSS

Frequency bands

100 MHz to 300 MHz – for mapping typically including 150 MHz (choice depends on survey goal and subsoil).

300 MHz

Higher detail, typically depth up to ~4 m depending on subsoil

150 MHz

Popular GPR mapping compromise – good balance of detail and depth reach in typical conditions.

100 MHz

Greater depth reach, lower sensitivity to small objects

Object detection

From ~5 cm depending on mineral content, moisture and environment

Horizontal accuracy

Approximately ±2–3 cm

Depth interpretation

Roughly ±5–15 % of depth

Higher frequency = higher detail

Suited to smaller objects and finer structures.

Lower frequency = greater depth reach

Suited to larger objects and deeper layers.

Why UAS

Why choose GPR on UAS

Non-invasive survey

No excavation, no environmental damage, no terrain disturbance.

Fast coverage of large areas

Efficient capture even on extensive or hard-to-access sites.

Precise georeferenced data

Every deliverable is spatially anchored and ready for further work.

Safer field operations

Less physical movement in risky or unclear locations.

Decision-ready deliverables

Data for design, asset management, revitalisation and investment planning.

Sensor combination

LiDAR, photogrammetry, multispectral, thermal – a complete site picture.

Applications

Typical use areas

Whether you manage assets, design or invest – there is a concrete scenario.

Municipalities and cities

  • drainage mapping
  • underground utility survey
  • deliverables for reconstruction and revitalisation
  • public space management

Heritage sites and historic grounds

  • gentle verification of underground structures
  • identification of historical routes and interventions
  • baseline for site restoration

Construction and design

  • pre-design preparation
  • site risk assessment
  • verification of unknown utility routes

Landscape and specialist surveys

  • drainage systems
  • historical terrain interventions
  • supporting data for hydrological and geological assessment

Process

How delivery works

  1. 1

    Intent consultation

    We assess the site, survey purpose and expected deliverables.

  2. 2

    Method design

    We choose grid, frequency range and capture scope.

  3. 3

    Aerial data capture

    Systematic site mapping using UAS.

  4. 4

    Processing and interpretation

    Cleaning, analysis and clear deliverable preparation.

  5. 5

    Client handover

    Maps, interpretation, 2D/3D data, exports, optional cloud sharing.

Deliverables

What the client receives

We align formats with your GIS, project team or investment documentation.

  • radar sections and basic interpretation
  • map of detected anomalies
  • georeferenced GIS deliverables
  • 2D and 3D visualisation
  • exports per project needs
  • deliverables for further professional follow-up
  • optional online / cloud sharing

We adapt deliverables to project requirements and client technical workflows.

Ecosystem

One technology is not enough. Their combination delivers the full picture.

We connect sensors so data makes sense in the context of the whole site.

LiDAR above ground, GPR below – the complete picture of reality.

Technology for accurate data and responsible decisions

Our services combine expert interpretation, precise geolocation and modern unmanned systems. Every project is prepared with regard to site character, survey purpose and required detail. The result is not just data, but deliverables with practical value for further decisions.

Need to verify subsurface structures without disturbing the terrain?

We will propose a suitable mapping approach, recommend technology and prepare deliverables exactly for your project purpose.

FAQ

Frequently asked questions

How deep can GPR see?

Depth reach depends on frequency, mineral content, moisture and subsoil character. Generally, lower frequencies penetrate deeper; higher frequencies provide finer resolution.

Is the method non-invasive?

Yes. Measurement takes place without excavation or surface damage.

What types of objects can be detected?

For example pipes, drains, voids, historical structures, subsoil anomalies or material boundary changes.

Can data be combined with LiDAR?

Yes. GPR and LiDAR together are very strong for comprehensive site understanding.

LET'S WORK TOGETHER

Send an inquiry — we will reply with a timeline and recommended approach.

Poptávka
Aerial ground-penetrating radar (GPR) on UAS | HORDRONES