1 research outputs found
Analysis and Optimization of Earth Observation Micro-Constellations
"Remote sensing techniques provide the capacity of collecting information of spots from afar. This tool has
an important application on Earth鈥檚 monitoring from space, a practice which help to gather multiple data
from any point on Earth鈥檚 surface in short periods of time: vegetation biomass, water quality, surface profile,
surface temperature, human infrastructures spread... This knowledge is used for a diversity of purposes of
human interest, such as military, agricultural, meteorological or ecological ends.
In order to acquire this information by remote sensing practice an entire infrastructure has been set, divided
into space and ground segments. The space segment comprises the satellite or satellites, also called Earth
Observation Satellites (EOS), which are equipped with sensors for the reception of data, usually in the form
of electromagnetic signals. These satellites establish transmissions with the ground segment by means of
antennas placed in certain spots, in order to sent the information collected. Then the ground segment is
responsible for the processing of the data acquired for its use on a particular application.
Earth observation satellites have been used for decades now. Historically, large satellites were required in
order to do the observation tasks. These satellites were manually coordinated and their time resolution, linked
with the time needed to revisit and acquire data from the exact location, was very low. Currently, the
miniaturization tendencies have also arrived to the space sector and smaller satellites are now developmed.
The emergence of the CubeSats, included in the nanosatellites group, and the growth of the number of their
launches make clear the future trend: Earth observation with small and numerous satellites"
(Fragmento extraido de la Introducci贸n del trabajo)Universidad de Sevilla. Grado en Ingenier铆a Aeroespacia