ScaleFlyt Antijamming proposes protection for Indian drone ecosystem

Thales experts are actively engaging with the local Indian drones ecosystem to offer drone technologies to support the region’s burgeoning drone sector according to social media reports. Thales Aerospace ScaleFlyt portfolio is designed to allow safe and secure long-range UAV operations against interference and jamming threats of drone GNSS navigation – a critical area for defence applications of drones. The technology is relevant to the Indian Ministry of Defence which deploys a range of high-altitude logistics drones; medium-altitude logistics drones; unmanned surveillance helicopters; remotely piloted aerial vehicles; mini-remotely piloted aircraft systems; runway-independent remotely piloted aircraft systems.

The Thales ScaleFlyt Antijamming solutions are designed to allow safe and secure long-range UAV operations against interference and jamming threats of drone GNSS navigation, says Thales.

Most drones fly using GNSS as the primary source for navigation. Intentional jamming or unintentional interference can jeopardize your mission with critical impacts (loss of drone, mission aborted or range reduced) due to external signals that may overlap with satellite signals. With no protection, flying in the sphere of the jammer will immediately halt your mission.

The ScaleFlyt GNSS Antijamming add-on, dedicated to all civil unmanned vehicles, rejects GPS/GNSS jamming signals. ScaleFlyt Antijamming solutions use Controlled Radiation Pattern Antennas (CRPAs) to protect against jamming threats. The underlying principle involves modifying the non-directional antenna pattern to form a dynamically controlled pattern that optimises the GNSS signal-to-noise ratio. The technique of interference rejection is when the antenna is controlled to minimise the power level of interference sources (“nulls” are introduced into the antenna pattern in the direction of the jammers).

At the end, the CRPA detects the presence and directional angle of the jammer. Then, the CRPA is able to alert the pilot and cancel signals of the jammer and provides jammed-free GPS/GNSS signals.

For more information visit:

www.thalesgroup.com

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