Electrical Engineering and Information & Communication Technolog
MILITARY INSTITUTE OF SCIENCE AND TECHNOLOGY
Institute of Radio Physics and Electronics,University of Calcutta.
92 Acharya Prafulla Chandra Road,Kolkata 700 009,West Bengal, India
Space Situational Awareness (SSA) is increasingly becoming relevant to the satellite systems and services community as the number of users of space increases. One of the major challenges to space-based infrastructure is posed by the threat of collision with controlled as well as uncontrolled space objects, both natural and man-made. Contingent measures could involve maneuvers and deorbit of satellites, the latter often leading to limited or no capabilities from them.
A host of strategies are evolving for SSA in a contested space environment. SSA encompasses a range of sensing, simulation and dynamics activities including modeling of the interaction between space-objects and their environments. Space surveillance, both from the ground and space, forms an integral component of present day space capabilities and needs to be harnessed judiciously for strategic as well as socially-relevant application areas.
University of Calcutta has a long tradition of research on space science dating back to 1940s and a host of instruments are presently operational round-the-clock at the Institute of Radio Physics and Electronics (IRPE), University of Calcutta and Ionosphere Field Station (IFS) of the University located about 50km north-east of Kolkata in an area of relatively less radio-frequency interference.
Operations of satellite-based systems and services are sometimes seriously challenged by events in the near-Earth space environment which severely compromises the performance of these systems. These effects are commonly referred to as Space Weather events and are relevant to different strata of the modern society. Impacts are particularly debilitating on life-critical applications on-board high dynamic platforms like an aircraft.
The present talk will highlight the adverse effects of some Space Weather effects from the equatorial and low-latitudes and attempt to provide mitigation through applications of spatial and frequency diversity principles in a multi-frequency multi-constellation scenario.