Research

Astronomy & Space Sciences

Title :

Development of techniques for ground-based source localization using sparse array on board LEO satellite

Area of research :

Astronomy & Space Sciences

Focus area :

Array Signal Processing

Principal Investigator :

Dr. Nithin V George, Associate Professor, Electrical Engineering, Indian Institute of Technology (IIT) Gandhinagar, Gujarat

Timeline Start Year :

2023

Contact info :

Details

Executive Summary :

Geolocation of ground sources from space based platforms has significant applications where the source itself may not be able to transmit its location, for example, low power sensors used for wildlife tracking. Such techniques are also important for search and rescue payloads. Considering the need to reduce the Size, Weight and Power (SWaP) of the payload, this project aims to develop a technique which provides accurate source localization with the minimum possible number of sensors (sparse array) and optimum spacing between the sensors for a given performance requirement. The performance of the proposed technique is being compared to other known techniques such as TDOA, FDOA etc. in terms of geolocation accuracy and minimum SNR required for detection.

Co-PI:

Shri Dhaval Updayay, Space Applications Centre, ISRO, Ahmedabad, Shri Saket Buch, Space Applications Centre, ISRO, Ahmedabad

Total Budget (INR):

26,24,520

Achievements :

The project being undertaken by ISRO in collaboration with academia is directly or indirectly beneficial to the society.

Organizations involved