A highly novel approach to a Compact Robust Imaging Lidar System is under development as a powerful tool for detecting and identifying a range of targets through fog and cloud.
The compact system is capable of target detection and identification far beyond the limits of normal capabilities of eye and/or camera capabilities under conditions where visibility is highly challenged by Fog or Cloud.

The Lidar employs a near-UV Laser (355 nm) with a short-duration pulse as the source.
It has been demonstrated that, since the scattering spectrum is virtually independent of wavelength (near UV through to SWIR), to obtain “vision” through fog and cloud, a near-UV system has major advantages due to the combination of eye safety and the maturity of laser and imaging photon detector technologies.
A novel photon-counting, range-gating detector is employed with a resolution at worst limited by the pulse duration of the laser – 7 ns or equivalent to 1 metre.
Such a detector provides the ultimate in terms of performance (signal to noise ratio) allowing the reconstruction of precise information on targets that are otherwise totally invisible.
Depending on application of the user, the laser power and laser size can be adapted if necessary, to increase the maximum operational range.

Imaging Lidar: Typical Target Detection and Identification through Mist, Fog and Cloud

Target Max. Detection Max. Recognition
Vehicle 40 km 14 km
Human 10 km 5 km

System Parameters
External Dimensions: 150mm (High) x 200mm (Wide) x 400mm (Long)
Weight: 8 – 10 Kg
Power: Internal Li-Pol rechargeable battery
Typical FOV: Standard lens 8 degrees by 5 degrees
Option: Alternative lenses may be specified
Focus: 50m to infinity
Controls: On/Off
Focus: Automatic
Data: Data export USB3
Mounting: Tripod for stand alone applications
or skeleton frame for system integration
Charger: Mains or Vehicle

General: IP rating for stand alone IP67
Operational: -30 degrees C to +50 degrees C
Storage: – 40 degrees C to +60 degrees C
Shock/Vibration: Per MIL-STD 810F
EMI: Per MIL-STD 461

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