depression angle

[di′presh·ən ‚aŋ·gəl] (engineering) angle of depression

angle of depression

i. In aerial photography, the angle between the optical axis of an obliquely mounted air camera and the horizontal. Also called a depression angle.
ii. The angle in a vertical plane between the horizontal and a descending line as viewed from an observer to an object (e.g., angle of depression of radar).
iii. The angle between the horizontal plane passing through the sensor and the line connecting the sensor and the target.

单词	depression angle
释义	DictionarySeeangle of depression depression angle depression angle [di′presh·ən ‚aŋ·gəl] (engineering) angle of depression angle of depression i. In aerial photography, the angle between the optical axis of an obliquely mounted air camera and the horizontal. Also called a depression angle. ii. The angle in a vertical plane between the horizontal and a descending line as viewed from an observer to an object (e.g., angle of depression of radar). iii. The angle between the horizontal plane passing through the sensor and the line connecting the sensor and the target.
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