Challenges DRISHTI
Frequency Difference of Arrival based Direction of Arrival for Radar Signals
Direction Of Arrival of the radar signal is primary parameter that needs to be measured by an EW system with very good accuracy. Hardware and firmware (algorithm) for measuring the direction of arrival based on the frequency difference of the radar signals intercepted needs to be developed.
Direction Of Arrival for the radar signals needs to be measured based on the difference in frequency of the intercepted signals. Requisite hardware for intercepting the radar signals followed by the measurement of frequency difference of the signals needs to be devised. Suitable COTs hardware can also be considered for the purpose. Suitable algorithm required for the calculation of Direction Of Arrival using the difference in frequency needs to be developed. The hardware and firmware will be integrated with the present EW systems.
Can be used in all ELINT / ESM systems with DoA measurement, suitable for all platforms.
Operational functionalities and capabilities expected
a. Proposed solution should compact, light weight
b. Frequency range of operation 2-18 GHz.
c. Direction Of Arrival accuracies to be less than 1 deg rms.
d. Algorithm to be able to be deployed on a FPGA platform
e. Direction Of Arrival to be calculated for radar signal with Pulse width > 50 nsec
f. Algorithm developed to tolerant for errors and noise in the actual system.
g. Azimuth coverage should 360 deg.
h. Compact hardware
i. Fast computation of direction of arrival.
Testing as per approved Test plan
