1 |
Active systemA remote-sensing system that transmits its own radiation to detect an object or area for observation and receives the reflected or transmitted radiation. Radar is an example of an active system. Compa [..]
|
2 |
Active systemA remote sensing system that transmits its own electromagnetic energy, then measures the properties of the returned radiation. Active systems require more power to operate than passive systems, but ca [..]
|
3 |
Active systemA system in which failures are immediately evident during normal operation.
|
<< Active permafrost | Activity coefficient >> |