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satellite remote sensingclick to hear

Observation of the Earth’s surface and atmosphere by a satellite equipped with a sensor.
satellite remote sensing active sensor data recording passive sensor energy source natural radiation target data processing target data reception data recording reflection artificial radiation data transmission

active sensor click to hear

Instrument that itself emits the energy required to illuminate the target and receives the waves it reflects.

data recording click to hear

If the satellite in unable to communicate with the terrestrial station, data is registered onboard and transmitted later.

passive sensor click to hear

Instrument that receives the waves produced when the target reflects the Sun’s natural rays.

energy source click to hear

At the origin of the remote sensing process is an energy source, for example the Sun, used to illuminate the target.

natural radiation click to hear

When the sky is clear, the satellite captures the reflection of the Sun’s rays from the Earth’s surface.

target click to hear

Surface or object that reflects the Sun’s rays.

data processing click to hear

Raw data is interpreted and analyzed to extract information about the target.

target click to hear

Surface or object that reflects the Sun’s rays.

data reception click to hear

Raw data reaches the terrestrial station in digital form.

data recording click to hear

If the satellite in unable to communicate with the terrestrial station, data is registered onboard and transmitted later.

reflection click to hear

Phenomenon by which natural or artificial waves bounce off the target and toward the satellite.

artificial radiation click to hear

When atmospheric conditions hide the Sun’s rays, the active sensor itself emits radiation waves.

data transmission click to hear

The sensor transmits raw data, if possible immediately, to a terrestrial station for processing.