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10 OCT

Technology Overview

Microwave Imaging with Drone (RF Imager/SAR on Drone)

Microwave imaging/Synthetic Aperture Radar (SAR), with its all-time and all-weather operation capability, is nowadays one of the most important surveillance techniques. Due to the ease of both construction and control, drone can provide low cost and convenient air service. Drone based microwave/SAR imaging system is therefore...

Technology_MicrowaveImagingwithDrone.png

Technology Overview

Microwave imaging/Synthetic Aperture Radar (SAR), with its all-time and all-weather operation capability, is nowadays one of the most important surveillance techniques. Due to the ease of both construction and control, drone can provide low cost and convenient air service. Drone based microwave/SAR imaging system is therefore particularly suitable for civil or commercial applications.


Technology Features & Specifications

A microwave sensor is mounted on the multi-rotor UAV (drone) platform to form images.

Microwave can penetrate the non-metallic material to obtain the sub-surface information. By co-processing (AI-based data fusion) together with the images from the optical sensors, we can use the microwave images to greatly improve the building inspection coverage and efficiency.

 

Parameter

Value

Imaging Mode

Boresight Stripmap

Waveform

LFMCW

Carrier Frequency

15 GHz

Bandwidth

600 MHz

Polarization

VV

PRF

1000 Hz

Antenna Dimension

50.2mm (Azimuth)

35.8mm (Elevation)

Antenna Gain

15.6dBi

Transmit Power

0.1 Watt

System payload

4.5Kg

Platform

Octal-rotor

 
 

Potential Applications

  • Infrastructure sub-surface inspection;
  • Forest scanning;
  • Search & rescue;
  • Low visibility environments monitoring

Market Trends and Opportunities

In mega-cities all over the world, high-rise buildings increasingly dominate the urban landscape as overall urban density increases. Increasing building height and complexity of building façade as well as manpower and resource constraints are the key challenges to the maintenance and risk management thereof. Drone-based building inspection is quickly replacing the conventional manual inspection practice for its palpable benefits in time, cost and most importantly safety aspects. According to Renewable Market Watch 2016 Report, the overall sales combined of both services and drone (UAV) units in building and construction inspection industry are projected to reach cumulative value of $5.89 billion (€5.3 billion) in 2025.  In this application, the optical and microwave sensors’ images will be put together by AI based data fusion technologies. Due to the powerful penetration performance of microwave signal, the system also can be used for forest scanning, search & rescue and some low visibility industry environments.


Customer Benefits

Microwave can be used together with optical sensor to provide complementary information and improve the system robustness. Furthermore, the rain/clouds/fog/canopy/wall penetration capability of microwave sensor and very flexible drone platform make it extremely suitable for the application under low visibility environments.