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Karthi

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Pattern measurement set up in anechoic chamber..jpg



proposed Frustrum Conformal antenna in a Pattern measurement set up in anechoic chamber.


Frustum shaped conformal antenna is suitable for transmission of telemetry data from a missile like spinning aerial platform.


A conformal antenna appropriately wrapped on to the surface provides potential solution and accordingly has been configured for meeting the requirements of a practical application. The antenna artwork has been designed to conform to the exterior geometry of the intended portion of conical surface and printed on a microwave substrate which is essentially thin and flexible. A corporate feed distribution scheme has been designed and tailored to match with the impedance of the microstrip radiator at multiple locations and also printed along with it making the frustum antenna very compact and of aerodynamic supportive form. The antenna produces required omni coverage in the plane normal to the roll axis.
 

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Integrated Submarine Sonar (USHUS) .

FEATURES

Indigenous integrated submarine sonar system to detect, localise and classify underwater submerged and surface targets through passive listening, interception of signals and active transmissions of acoustics signals.

Both analog and digital external system interface.

Modular and rugged design with upgradeable performance features
Powerful Fault Diagnosis System (FDS) with On-line & Off-Line FDFL.

User Transparent Automatic Periodic key change.

Local and Remote Loop Back tests.

Caters for easy customization and updation of the encryption algorithm, without requiring change in hardware.

The encryption algorithm used is complex enough to withstand Sophisticated modern day attacks.

PASSIVE SONAR
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Surveillance in Passive Mode with high search volume.

Automatic detection of multiple Targets.

Performed Beams in azimuth and in three vertical book directions using ASICS.

Post Processor Normalisation and three time constant integration using floating point SHARC Processors.

Colour coded multiparameter video in 20.1 inch Flat Panel Display.

Auto track for six targets.

Lofar, Demon, Classifier and Spectrum Processing for tracked targets.

Color Coded display to identify target threat level.

User friendly MMI.

ACTIVE SONAR
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CW and LFM modes of transmission with three selective pulse widths.

High source level.

Low frequency planar transducer array
Complex demodulation, replica correlation for Doppler and Range estimation.

INTERCEPT SONAR
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Early warning long range target detection.

All round coverage in three bands.

FFT, Spectral processing.

Colour coded bearing Vs time water fall display.

UNDER WATER COMMUNICATION SYSTEM
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Multiple mode acoustic communication in dual frequency to meet NATO and other requirements.

VOICE, TELEGRAPH, DATA AND MESSAGE modes of operation.

Three separate elements to cover 120° in Azimuth.

OBSTACLE AVOIDANCE SONAR
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High frequency short range sonar
Rectangular transducer array.

Transmission to cover three sectors of 30° each
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DRDO-ELISRA (now Elta owned) Dual Colour Missile Approach Warning Sys (DCMAWS)
Developed for MKIs.
Utilizes 2 spectral regions in the mid-bnd Infra-Red to detect missile threats.
Based on the radi spectral char of an SF motor,relative to sun reflection n grnd clutter
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DARE-BEL, EW Suite for MiG-29UPG.
Specifics
Active Phased Array steering with narrow beams fr pinpoint threat jamming
Jamming: 6-18 GHz, DFRM based jam
2 in 1 [Warning & Jamming]
Radar Warning: 1-18 GHz; DR based
Wide Band Receiver
Narrow Band Receiver options
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DRDO Light Weight Portable Laser Target Designator (LWPLTD)

The Light Weight Portable Laser Target Designator (LWPLTD) system is a compact, rugged, tropicalized to operate in Indian Atmosphere and easy to handle Laser target designation / Rangefinder and target location system. It is a capable of being a part of combat load carried by troops as part of heavy drop load. It is portable by ACT in man backpack, in the least number of composite loads.

The LWPLTD system is used to detect, locate, recognize, mark, observe and designate stationary and moving targets during day and night missions. When designating, the LWPLTD illuminates the target with a coded laser beam for laser spot homing guided weapons, such as:
Laser-guided missiles
Laser-guided bombs
Laser-guided projectiles.
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Mikoyan MiG-29 UPG of Indian Air Force has a fifth generation internal Electronic Warfare system.

The D-29 system developed by DRDO is an internal EW system by DRDO has it's antennas mounted at the leading edge of wingroot on both sides and one antenna pops out from the lower portion of starboard side tail fin.

The jammers are defensive in nature and are used to jam SAMs or AAMs fired at MiG-29. The jammers work on cross eye jamming principle. Cross-eye jamming is an electronic attack technique that induces an angular error in the radar by artificially creating a false target and deceiving the radar into detecting and tracking it. Presently, there is no effective anti-jamming method to counteract cross-eye jamming.

D-29 is an integrated EW system for Radar warning and jamming that encompasses RWR, ECM, ESM functions and utilizes state-of-the-art active phased arrays for selectively jamming the multiple threat radars. The D-29 system serves primarily as a self-protection jammer that will boost survivability, enhance situation awareness and increase mission effectiveness.

D-29 system detects and gives the information about the position of the RF sources illuminating the aircraft and applies the appropriate jamming technique. The system mainly consists of Unified Receiver Exciter Processor (UREP modified to suit the requirements of D-29), Solid State Transmit / Receive Unit (SSTRU) with Active Array Unit (AAU) and a liquid cooling system.
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AbRaj

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View attachment 44983

D29 is an extremely effective EW suite , capable as any western EW system
Anything against IR seekers ? besides chaff and flares.

Also why the fuck HAL/ADA are unable to accommodate it in LCA mk1 and 1A. It looks compact enough to be fitted on LCA airframe.
 

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