angle of depression

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angle of depression

1. The angle in a vertical plane between the horizontal and a descending line.
2. In air photography, the angle between the optical axis of an obliquely mounted air camera and the horizontal. Also called depression angle. See also tilt angle.
Translations
angle de dépression
References in periodicals archive ?
This spacing element can also house a 24V power supply, but also serves as a raising spacer to increase depression angle elevation to 30[degrees] (maximum elevation is 75[degrees]).
Then, the robustness of the proposed method is examined with respect to depression angle changes and noise.
With the tri-axial receive antennas, we do correlated processing that provides a bearing and depression angle, and also allows us to look for the noise.
The formulas given here assume that the emitter is far enough from the sensor platforms that the depression angle to the emitter from the receiving platforms can be ignored.
Many applications require that the lens/camera point down at a shallow depression angle (30 degrees) from the ceiling.
Due to the shallow elevation depression angle, mainlobe clutter is seen throughout the range interval.
Figure 2 depicts multiple images of a target in the same depression angle but in different aspects.
The reflected image of the roofline was 46 feet below the water's surface, but at his position 11 feet above the water, Munch would see the reflected roofline 57 feet below his horizon, and consequently at a much larger depression angle of 10.
This figure relates the optical range in nautical miles from a platform at altitudes varying from 1,000 to 60,000 ft over the earth as a function of depression angle.
Air-to-ground attacks with the ISIS are normally carried out according to a set pattern and with a manually inserted depression angle, but some ISIS models make a provision for laser-range inputs.
where v' is the complementary angle of InSAR's depression angle.
Actually, a solar depression angle of 16 [degrees] is sufficient for any astronomical activities, even the deepest of deep-sky observing, in almost any part of the sky.
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