A5057458721- Spacecraft Design and Technology
- Remote Sensing in Agriculture
- Land Use and Ecosystem Services
- Remote Sensing and LiDAR Applications
- Remote-Sensing Image Classification
- Remote Sensing and Land Use
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Archaeological Research and Protection
- Fire Detection and Safety Systems
- Space Science and Extraterrestrial Life
- Satellite Image Processing and Photogrammetry
- Educational Technology and Pedagogy
- Refrigeration and Air Conditioning Technologies
- IoT and Edge/Fog Computing
- Climate change impacts on agriculture
- Infrared Target Detection Methodologies
- Traffic Prediction and Management Techniques
- AI and HR Technologies
- Industrial Vision Systems and Defect Detection
- Nuclear Engineering Thermal-Hydraulics
- UAV Applications and Optimization
- Archaeology and ancient environmental studies
- Space exploration and regulation
- Planetary Science and Exploration
- Soil Moisture and Remote Sensing
Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology
2025
Agenzia Spaziale Italiana
2016-2024
Sapienza University of Rome
2002-2022
University of Calabria
2013
AGILE (Astrorivelatore Gamma ad Immagini LEggero) has been a unique and hugely successful mission of Italian Space Agency (ASI), built operated with the programmatic technical support National Institute for Astrophysics (INAF), Nuclear Physics (INFN), several universities industries. During almost 17 years observations in orbit (from April 23, 2007, to January 18, 2024), contributed high-energy astrophysics terrestrial physics many discoveries detections. Two co-aligned X- gamma-ray...
Agricultural activities conducted in the Great Rift Valley of Kenya show a significant decline productivity levels. This phenomenon is mainly related to limited availability water resources, lack supporting irrigation, and harvesting techniques ineffectiveness. Production risks reduction closely with better use resources understanding effects resulting from multiple interactions between climate, agricultural vegetation, soil type, crops management techniques. In this paper, remote automatic...
This study presents a performance analysis for an Internet-of-Things wildlife radio-tracking mission using drones, satellites and stratospheric platforms data relay with Spread Spectrum Modulation devices. The is presented link budgets, calculations of the area coverage, estimation time resolution allowable amount each collar, power energy budget consequent battery pack collar weight estimations, cost considerations on synergetic approaches to incorporate more segments together. paper...
The pilot project SIGRI (Sistema Integrato per la Gestione del Rischio Incendi) of the Italian Space Agency aims at developing an integrated system for management wildfires. provides satellite-based products capable assisting in all phases fire combat activities: forecast, detection, damage assessment, and recovery. goals were achieved by implementing consolidated methodologies, and/or innovative tools methods automated analysis multispectral, Synthetic Aperture Radar, non-EO data. This...
We investigated the use of phenological information extracted from satellite imagery and supported by agro-ecological zoning (AEZ) in accurate crop classification monitoring. Vegetation indices Landsat 8 are capable to track vegetation development through year them profile can be extrapolated implemented into a multi-temporal automatic process detect agricultural vegetated areas discriminate among different species. Our case study is Nakuru district located within Great Rift Valley Kenya.
The territory knowledge plays a key role in the proper management and planning of many human activities. relevance land monitoring mapping, that finally leads to quantify changes cover, is widely recognized as element study global changes. Vegetation indices derived from satellite imagery are well correlated with those parameters defines crop yield's status; consequence remote sensed earth observation data really notable for cultivated areas yields provide information concerning food...
The SIGRI (Sistema Integrato per la Gestione del Rischio Incendi) pilot project, funded by ASI (the Italian Space Agency), aims at developing an Integrated System for the Management of Wild Fire Events. system should provide satellite based products capable to help fire contrasting activities during all phases: prevision, detection, and damage assessment/recovering. In particular, paper concerns development a Risk Index be produced daily with objective showing total level risk area interest...
Agricultural activities conducted in the Great Rift Valley of Kenya, show a significant decline productivity levels. This phenomenon is mainly related to limited water resources availability, lack supporting irrigation and harvesting techniques ineffectiveness. The production risks reduction closely with better use understanding effects resulting from multiple interactions between climate, agricultural vegetation, soil type crops management techniques. In this study, remote automatic...
The SIGRI (Sistema Integrato per la Gestione del Rischio Incendi) pilot project, funded by ASI (the Italian Space Agency), aims at developing an integrated system for the management of wild fire events. provides satellite based products capable assisting all phases contrasting activities: prevision, detection, and damage assessment/recovering. project implementing consolidated methodologies and/or innovative tools methods analysis remote sensing data extraction information useful to...
Understanding the dynamics of land cover change has increasingly been recognized as one key research imperatives in global environmental research. Scientists have developed and applied various methods order to find propose solutions for many world problems. From 1986-1995 changes Kenya coastal zone landcover, derived from post-classification TM images, were significant with arid areas growing 3% 10%, woody decreased 4% 2%, herbaceous 25% 20%, increased 2% 3%. In generate probability map a...
The SBAM (Satellite Based Agricultural Monitoring) project, funded by the Italian Space Agency aims at: developing a validated satellite imagery based method for estimating and updating agricultural areas in region of Central-Africa; implementing an automated process chain capable providing periodical land cover maps area interest and, possibly, estimate crop yield. project at filling gap existing availability high spatial resolution Kenya. A map Central-Eastern Africa including Kenya was...
The increasing attention to Space for scientific and commercial uses has led, in recent years, a miniaturization of space systems satellites, trying meeting the new needs longer operational life, reduced costs weights, reliability without leaving apart high performance needed applications. For this purpose, quality generation are exponentially improved, result phase research. In context, two-phase flow cooling assume great importance. This is testified by interest shown United Nations Office...
Synthetic aperture radar (SAR) differential interferometry is a powerful technique that allows to measure very small movements of the terrain occurred between two data acquisitions. In previous works we demonstrated how overcome main limitations (i.e. decorrelation noise and atmospheric artifacts) by means method for unwrapping sparse phase performing temporal analysis successive this work explore possibility considering together space time properties studied signal. The steps mentioned...