The invention concerns a method and device, for remote sensing of objects that
emit variable thermal emissions having phases, which may include: A. acquisition
of a map of the radiation coming from the surface of the portion of space within
or behind the object to be sensed at least at a first time t1 and a
second time t2, such times being successive to each other; B. acquisition
of a map of the radiation coming from the surface of said portion of space at a
third instant t*; C. summation of the maps of at least two times t1 and
t2; D. subtraction of the map at time t* from the sum from the sum of
phase C as well as other phases.
