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Quantum Computing Application for Satellites and Satellite Image Processing
Published in Thiruselvan Subramanian, Archana Dhyani, Adarsh Kumar, Sukhpal Singh Gill, Artificial Intelligence, Machine Learning and Blockchain in Quantum Satellite, Drone and Network, 2023
Ajay Kumar, B.S. Tewari, Kamal Pandey
A satellite is a man-made vehicle or platform that orbits the earth in a fixed orbit in space and carries application-specific sensors and instruments. Satellites are classified based on the payload they carry and the orbit they are placed in. For example, communication satellites must continuously view the earth’s surface; thus, they are placed in the geostationary orbit at a height of 36,000 km above the surface (Lillesand, 2016). Similarly, remote-sensing satellites are equipped with imaging sensors that capture photographs of the earth’s surface in several electromagnetic bands. The recorded data is sent to a ground control station where it is processed and disseminated for specialised applications such as land use and landcover dynamics, crop yield forecasting, hydrological modelling, and urban dynamics, among others.
Air and Water Pollution Monitoring and Control Through Bionanomaterial-Based Sensors
Published in Naveen Dwivedi, Shubha Dwivedi, Bionanotechnology Towards Sustainable Management of Environmental Pollution, 2023
Monika Singh, Doli, Amit Yadav, Sumit Kaushik, Namrata Gupta, Gyanendra Singh, Piyush Gupta
Satellites are used for a variety of purposes, including communication, navigation, climatology, surveillance, and environmental monitoring. Nanotechnology and micro/nano electromechanical systems (MEMS/NEMS) have the potential to transform the field of environmental pollution monitoring satellite design. We can extract pollution and optical data for any city using image processing of satellite data. To detect pollution, we conducted experiments with nano-scale metal-oxide sensors. The sensors are linked to a web server and a personal digital assistant (PDA) with GPS and wireless communication. We used data from this prototype device to overlay satellite data in order to cross-reference pollutant coordinates. We expanded our research to look into how nano-scale materials might pollute the air and water. The application of such transdisciplinary and revolutionary technologies has sparked a wide-ranging public discussion, ranging from support for more study to a moratorium in the absence of scientific risk assessment. This part offers a quick overview of ethical and legal issues, fate and transportation, and in-silico risk assessment.
Introduction to Position Reference Sensors
Published in Surender Kumar, Dynamic Positioning for Engineers, 2020
Satellites are commonly used for communication and navigation purposes. It is interesting to know about the different services available and the limitations associated with them. A brief description is given below for each and it is recommended to refer to more details as and when needed.
Satellite and instrument entity recognition using a pre-trained language model with distant supervision
Published in International Journal of Digital Earth, 2022
Ming Lin, Meng Jin, Yufu Liu, Yuqi Bai
Remote sensing, as a major EO technical method, provides a large amount of raw data. Tracing back to the source, satellites and their onboarding instruments greatly determine EO capabilities (Wang and Yan 2020; Zhao et al. 2021). Over the years, the number of satellites sent to space has increased significantly. According to the Union of Concerned Scientists (UCS) Satellite Database, as of September 2021, there were more than 4,550 operational satellites in orbit, nearly a quarter of them performing EO missions with more than 1000 types of instruments. Satellites and their onboard instruments link EO resources in the knowledge production chain (Craglia et al. 2017; Sudmanns et al. 2020), in which the extraction of satellite and instrument entities from unstructured EO resources is a key step in tracking.
Potential applications of advanced nano-composite materials for space payload
Published in Australian Journal of Mechanical Engineering, 2022
Dhaval A. Vartak, B. Satyanarayana, B. S. Munjal, K. B. Vyas, Pina Bhatt, A. K. Lal
Satellites receive signals from an earth station, amplify the signals and re-transmit to one or more earth stations. Since a satellite, once put into orbit cannot be brought back for repairs, the requirement of reliability is of the highest order. Payload is part of the satellites or spacecraft. It contains the panels, highly populated with electromechanical packages, RF passive components like antennas, feed, waveguides, filters, isolators, couplers etc. as shown in Figure 1 (Space Applications Centre SAC -ISRO 2016).