STATE-OF-THE-ART INFRASTRUCTURE


     DRDO has achieved a high degree of autonomy in the development and engineering of missiles. It has state-of-the-art world class facilities for designing, developing, testing and building a range of missiles. Following are some of the facilities available with DRDO:

EMI/EMC Compatibility Test Facility
    A state-of-the-art electromagnetic interference and electromagnetic compatibility (EMI/EMC) test facility has been set up by DRDO.

Automatic EMI susceptibility measuring system, which can generate 200 V/m field in the frequency range of 10 kHz to 40 GHz; automatic EMI data collection system, which can measure emissions in the frequency range of 30 Hz to 40 GHz; and human and vehicular electrostatic discharge testing facility have also been established.

Antenna Fabrication Facility
     
Antenna fabrication facility has provision for developing precision microwave planar array antennas at Ku- and Ka-band involving slots of minimum width of 0.5 mm with accuracy of ±10 microns.


Ku-band antenna                            Slotted planar array           Wave-guide coupler

Hardware-in-the-Loop Simulation (HILS)
          
Design and development of the missile system is an exciting and challenging process. Successful flight-testing is a demonstration of the successful completion of design and development process. However, before the missile is committed to flight trials, it is ground flight tested on the hardware-in-the-loop simulation (HILS) platform.


Missile motion simulator

On the HILS platform, the actual sub-systems along with flight software are tested on the trajectory of the missile from liftoff to impact. DRDO has developed HILS test beds for various types of missiles.

Radar Cross-Section & Microwave Imaging Facility
DRDO has established a radar cross-section measurement facility to cater for widespread technical applications in its ongoing and futuristic programmes. A state-of-the-art system operating at W-band has been developed and integrated in the existing compact antenna test range as MWS (millimeter wave scattering) project to perform measurements on ‘all metal-scaled models’.


Model under evaluation

Critical areas of research like calibration targets, measurement procedure, error modelling along with the indigenous development of low observable RCS pylon has seen the technology to come up to the level to locate low observable aircraft models and their 2-D images in both CW and pulsed mode of operation. This gives insight not only in the gross scattering behaviour of the geometry under test but also the distribution of prominent scattering center (hot spots) on the geometry.
The capability of the test facility has been upgraded to perform precise measurements on RCS reduction materials.

Radome Calibration Test Facility
A state-of-the-art test facility for calibrating missile radome has been established with very high degree of precision by DRDO. The most important constraint of simulating antenna angle inside the seeker has been achieved by integrating an indigenously developed antenna positioner for generating precise relative angles.


Configured range for radome calibration with additional Gimbal

The complete axes alignment technique using lasers, RF and motion calibration along with measurement procedure has been evolved for measurement of radome parameters for all polarisation angles.
An automated (online) acquisition and analysis software has been developed in-house to cater for wide range of sources and receivers, namely Scientific Atlanta 1783 and 1797. Further, post acquisition data processing algorithm has been developed to increase the measurement repeatability within ± 0.50. The system is fully operational.

Environment Testing Facility
A state-of-the-art environment test facility of international standard has been established for dynamic and climatic environment.


Dynamic test facility
 

Experimental model testing and analysis, airborne noise measurement and analysis, and dynamic balancing of rocket facility have also been set up by DRDO.

Multipoint Excitation Testing for Model Analysis
A state-of-the-art multipoint excitation testing for model analysis has been established for vibro acoustic, pyro-shock, and kinetic heating tests. A number of test like high altitude simulation, rain and icing simulation, salt corrosion, low and high temperature, combined environment, and tropical exposure can be done in the facilities.


Pyro-shock test                               Vibro-acoustic test                   Kinetic heating


Pendulum Shock Testing Machine


Pendulum shock testing machine

    A shock machine is a device, which allows modification of the velocity over a short period of time. Pendulum shock machine is an impact type machine where impact velocity is obtained by gravity. DRDO has developed a cost-effective, maintenance free pendulum shock machine to test pay loads. The maximum UUT size is 500 mm x 500 mm x 500 mm.