Design techniques of Ground Station for pollution monitoring nanosatellite

Recent environmental fiascos, oil spills, regular emission of huge amount of Greenhouse gases, negligence in implementing pollution control strategies, etc. have led to drastic change in the global climate. Abrupt changing of climate and increasing sea level have posed a great threat to human existence, along with its flora and fauna. To monitor the air pollution more effectively, and to provide a precise data model of pollution level, we are implementing space technology in monitoring the Greenhouse gases over a particular region. Our nanosatellite is having a spectrometer as a payload for monitoring the greenhouse pollutants over a given region. We propose in this paper the ground station design techniques to receive the data and process it in our university campus. The Ground Station is capable of providing VHF/UHF communications in the frequency ranges of 144-146MHz and 430-440MHz, with our dedicated satellite in LEO. The proposed designed of circular polarized, crossed yagi antenna will perform autonomous tracking efficiently to acquire data from the satellite. Our ground station consists of the Antenna system including rotor interface, transceiver and terminal node controller (as the Modem system) and the Processing system.