NEW DELHI: The Council of Scientific and Industrial Research (CSIR) has developed state-of-the-art marksmanship (shooting) training system (DHVANI) for Indian Army. The sophisticated acoustic sensor-based system will help the Army to develop shooting techniques of its combat personnel during training.
The system will help them in perfecting marksmanship skills by accurately determining the location of bullet impact and providing real-time feedback during training.
The CSIR - country's premier industrial R&D organization - will formally hand over the 'DHVANI' to Indian Army in Secunderabad this afternoon.
The marksmanship training requires positive and negative reinforcement of shooting techniques immediately after each shot is fired. However, the manual system currently used by the Indian Army involves the marksman firing shots at the target and subsequently walking up to the target (about 300 meter) and identifying whether the shots were a hit or a miss.
This primitive type of marksmanship training exhibits not only high turnaround times but is also inconsistent, unreliable, inaccurate and subjective.
This modern indigenous marksmanship training system, DHVANI, is tailor made by CSIR-NAL (CSIR-National Aerospace Laboratories) to meet the requirements of the Indian Army at a cost lower by 40% of the cost of similar systems available elsewhere in the world without compromising on the performance.
"The system originally developed for use by the Indian Army has potential application for use by the paramilitary forces and also in the sports sector", said the ministry of science and technology in its statement.
It said, "Each prototype currently costs Rs 9 lakh/firer lane, which is significantly lower than the price tag of Rs 15-18 lakh for each firer lane of older generation wired systems in use with the Indian Army".
The DHVANI is based on the basic principles of gas dynamics and aero-acoustics. Essentially, a bullet is a supersonic projectile, which generates a shock wave from its leading edge, continuously at every point of its supersonic travel. At any instant along the bullet path, the shock wave envelope propagates in an invisible-cone continuously outward at an angle related to its Mach number. The pressure wave in air caused due to the passing of the bullet results in a pressure profile known as'N-wave' because of its shape.
The hit location of the bullet is then determined accurately by using an array of sensors to record the acoustic pressure rise due to the passing shock from the bullet.
"Using advanced algorithms developed at CSIR-NAL, the recorded signal from the sensors are analyzed for detection of N-wave, and the geometrical shape of the shock wave is then used to determine the coordinates of the bullet on the target. These coordinates are then wirelessly transmitted to a display at the shooter end. The entire process starting from firing a shot to the display of results at the shooter end takes less than half a millisecond", said the ministry.
http://timesofindia.indiatimes.com/followceleb.cms?alias=Dhvani,CSIR,Council of Scientific and Industrial Research
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