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Multi Spectral observation channels

Many of current operational scenarios provide us with great challenges at detecting targets of interest. The capability to observe the area-of-interest in a wide spectral band, significantly improves the Detection Recognition and Identification (DRI) capabilities under all-weather conditions, day or night.

Multi-Spectral observation channels

  • VIS and NIR (0.4-0.9µm)
  • Short Wave IR (SWIR, 0.9-1.7µm)
  • Mid Wave IR / Long Wave IR

CONTROP has been developing a vast variety of observation channels over the past 30+ years, covering wide spectral-bands from the Visible to the NIR, SWIR (Short-wave IR), MWIR, and the LWIR, with various DRI performance capabilities, from a few hundred meters to tens of Kilometers and beyond.

Quite uniquely, the development is done in-house, including all relevant technical fields such as – raw video stream design, optical and opto-mechanical design, lens control, image processing algorithms on a camera level, and more.

  • VIS and NIR (0.4-0.9µm) – Advanced HD and multi-mega pixel sensors, providing high resolution, high sensitivity, and high performance even in low light conditions, using state-of-the-art sensors with dedicated HW and SW algorithms, enabling high resolution and high quality imagery.
  • Short Wave IR (SWIR, 0.9-1.7µm) channels – The SWIR band combines benefits of reflective-light imagery (same as a VIS sensor) together with excellent atmospheric penetration capabilities (somewhat similar to the MWIR band). Therefore, SWIR observation provides superior DRI performances especially in challenging weather conditions such as haze, fog, dust, etc. CONTROP has developed dedicated SWIR channels for its systems, including raw video sampling, specialized non-uniformity correction algorithms, dedicated optical designs, and integration with active illumination channels.
  • Mid Wave IR (MWIR, 3-5µm) – CONTROP has integrated various versions of InSb-type (Indium Antimonide) detectors, wide-band and narrow-band, “hot” and “cold”, analog and digital MWIR detectors. These cooled detectors have been integrated with dedicatedly-designed continuous optical IR zoom lenses, in a wide range of focal length and relative apertures (F#’s), enabling high quality IR imaging from hundreds of meters up to hundreds of kilometers.
  • Long Wave IR (LWIR, 8-12µm) – CONTROP has developed and produced sensors and systems based on “uncooled” (micro-bolometers) and “cooled” LWIR detectors.
    • “Uncooled” LWIR – Provides compactness and very low SWaP, thus mainly used within small payloads to be deployed on small airborne platforms (Group 1). Optimal image from a relatively low sensitivity detector requires a dedicated compact optical design and robust mechanical design for endurance under high take-off and landing shocks.
    • “Cooled” LWIR – Mainly for high-quality reconnaissance capabilities at a challenging battle-field observation conditions – high smoke, dust, and haze.

The LWIR channel has high sensitivity, therefore can be operated in a high frame-rate mode enabling special system modes of operation and target detection using special video analytics algorithms.

The ability to integrate into a single payload different spectral channels, enables to provide the operator with high quality video and data from long stand-off ranges with superb DRI capabilities.