Parameter Tree:
EARTH SCIENCE > SPECTRAL/ENGINEERING > SENSOR CHARACTERISTICS > PHASE AND AMPLITUDE

Definition:
Measurements related to the signal recorded by the sensor.
Phase: A property of a periodic phenomenon, for example a
wave, referring to its starting point or advancement (fraction) relative
to an arbitrary origin. For example, the angle of a complex number (ie.,
the waves are out-of-phase). Amplitude: Measure of the strength
of a signal, and in particular the strength or "height" of an
electromagnetic wave (units of voltage).


Reference:
CCRS Remote Sensing Glossary
http://www.ccrs.nrcan.gc.ca/glossary/