India 's Ministry Of Defence

1783 WordsOct 24, 20168 Pages
Over the past 16 years, significant efforts have been made by India’s Ministry of Defence-owned DRDO laboratories and DPSUs like Bharat Electronics Ltd (BEL) toward the fielding of RF-based and optronic sensors for battlespace surveillance. Latest examples of these include the BEL-developed LRRSS, the DRDO-developed and BEL-built BFSR-XR 50km-range and BFSR-ER 15km-range battlefield surveillance radar, and the IRDE-developed and BEL-built, armoured vehicle-mounted SEOS with 15km-range. What is lacking, however, is the availability of synthetic aperture radar-based sensors capable of providing high-resolution, photographic-like imagery, even in inclement weather or darkness. The most obvious solution therefore lies in equipping the recce-scout RSH version of the HAL-developed LUH with a lightweight SAR sensor like SAAB’s Carabas, plus s stabilized LRRSS. The Carabas is designed to enable superior foliage and camouflage penetration (FOPEN) capabilities, wide-area surveillance and automatic target detection. It is based on low-frequency SAR and change detection technology and it also exploits polarimetric sensing. Carabas utilses two very broad bands in the low VHF and UHF domains: 20–90MHz and 140–360MHz, respectively. It is the low VHF band that gives Carabas its supreme penetration performance, while the UHF band is more important for detecting smaller targets in lighter vegetation. Carabas’ signals penetrate foliage without reflections through all vegetation types and
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