The invention relates to the technical field of
data calibration, and discloses a
cloud water icing detection dynamic calibration method and
system for an airborne terahertz
radiometer, and the method comprises the steps: collecting external environment temperature and
humidity data, and calibrating matching parameters; constructing an influence function of antenna
icing on the flight platform on the preset terahertz
frequency band radiation efficiency; performing
icing analysis on the external environment temperature and
humidity data to obtain an equivalent icing
attenuation factor, correcting a target source
radiation reference value stored in the airborne terahertz
radiometer, and analyzing an environment compensation item and a
system response item of the external environment temperature and
humidity data; synthesizing the icing correction item, the environment compensation item and the
system response item with the target source
radiation reference value to generate a
calibration coefficient; and compensating and correcting the original radiation
signal of the terahertz
frequency band received in real time by using the
calibration coefficient to obtain a terahertz effective detection
signal. According to the invention, the accuracy of dynamic calibration of
cloud water icing detection can be improved.