Systems and Constraints

A remote sensing satellite placed in orbit around the Earth is subject to several gravitational forces that will define its trajectory and motion. Orbit formalism dates as far as Kepler (1609), and the motion of satellites is modeled using Newton's laws. The Earth has specific properties; these...

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Bibliographic Details
Published inRemote Sensing Imagery pp. 1 - 32
Main Author Nicolas, Jean‐Marie
Format Book Chapter
LanguageEnglish
Published Hoboken, USA John Wiley & Sons, Inc 21.01.2014
Subjects
heliosynchronous sensors
image acquisition
Kepler's law
Newton's law
quasi‐circular orbits
remote sensing satellites
satellite systems
spectral resolution
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ISBN9781848215085
1848215088
DOI10.1002/9781118899106.ch1

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Summary:A remote sensing satellite placed in orbit around the Earth is subject to several gravitational forces that will define its trajectory and motion. Orbit formalism dates as far as Kepler (1609), and the motion of satellites is modeled using Newton's laws. The Earth has specific properties; these specificities introduce several changes to the Kepler model: quite strangely, the consequences turn out be extremely beneficial for remote sensing satellites, since they allow us to have heliosynchronous sensors. This chapter analyzes orbital characteristics in order to draw some conclusions regarding the characteristics of imaging systems that orbit the Earth in quasi‐circular orbits. It provides the basis for the essential concepts in satellite imagery, which are perspective ray, resolution and ground swath. The chapter also gives an introduction on the notion of spectral resolution. The difficulty of implementing sensors is not the same in all areas of the electromagnetic spectrum.
ISBN:9781848215085
1848215088
DOI:10.1002/9781118899106.ch1