A colleague has inquired can GPS be considered as remote sensing?
His theory is what can be remote than coordinates derived from GPS.
Any thoughts?
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the scanning of the earth by satellite or high-flying aircraft in order to obtain information about it.?ÿ
You are receiving a signal from a satellite but I don't think you can call it scanning...
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The American Society for Photogrammetry and Remote Sensing defines it as:
"Remote Sensing techniques are used to gather and process information about an object without direct physical contact."
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I would say gps as we know it does not constitute remote sensing but have argued that photogrammetry does fall into that category. As soon as you or your equipment touches an object being measured it loses the remote sensing part? But really what does the classification matter anyway?
I think if your colleague tries to advertise a remote sensing product, and then delivers a normal topo survey done with GPS he is in for a big surprise. ?ÿEither invest in the equipment that allows you to provide the product or services you want to sell, or don??t sell them.
No GPS is not remote sensing, at least not unless you offset every point and that's still a stretch. Remote sensing is non-contact measurement. I don't necessarily agree that it's only remote sensing if it's collected from a satellite or high-flying aircraft either; scanning, sonar, and photogrammetry are all services offered by our Remote Sensing department.
Hello
The GPS and the remote-sensing are two different areas; the GPS is for positioning while the remote-sensing?ÿgenerally refers to the use of satellite- or aircraft-based sensor technologies to detect and classify objects on Earth,?ÿand it has its own satellites e.g. Landsat-1.
The American Society for Photogrammetry and Remote Sensing defines it as:
"Remote Sensing techniques are used to gather and process information about an object without direct physical contact."
?ÿ
I would say gps as we know it does not constitute remote sensing but have argued that photogrammetry does fall into that category. As soon as you or your equipment touches an object being measured it loses the remote sensing part? But really what does the classification matter anyway?
Yeah, what he said.