Forward Looking Infrared - Origin of The Term

Origin of The Term

The term "forward looking" is used to distinguish fixed forward looking thermal imaging systems from sideways tracking infrared systems, also known as "push broom" imagers, and other thermal imaging systems such as gimbal-mounted imaging systems, handheld imaging systems and the like. Pushbroom systems typically have been used on aircraft and satellites. They normally involve a one-dimensional (1D) array of pixels which uses the motion of the aircraft or satellite to move the view of the 1D array across the ground to build up a 2D image over time. Such systems cannot be used for real time imaging, and must look perpendicular to the direction of travel.

Read more about this topic:  Forward Looking Infrared

Famous quotes containing the words origin of, origin and/or term:

    The origin of storms is not in clouds,
    our lightning strikes when the earth rises,
    spillways free authentic power:
    dead John Brown’s body walking from a tunnel
    to break the armored and concluded mind.
    Muriel Rukeyser (1913–1980)

    Our theism is the purification of the human mind. Man can paint, or make, or think nothing but man. He believes that the great material elements had their origin from his thought.
    Ralph Waldo Emerson (1803–1882)

    Dead drunk
    is the term I think of,
    insensible,
    neither cool nor warm,
    without a head or a foot.
    To be drunk is to be intimate with a fool.
    Anne Sexton (1928–1974)