초록 ▼

a ratating sensor responsive to infrared or electro-optic radiation has a nearly hemispherical field of view. The sensor comprises a rotating platform (3) supporting a planar multidetector focal plane array (1). The array (1) has three or four sides. Two of the sides are straight lines. One or two s

a ratating sensor responsive to infrared or electro-optic radiation has a nearly hemispherical field of view. The sensor comprises a rotating platform (3) supporting a planar multidetector focal plane array (1). The array (1) has three or four sides. Two of the sides are straight lines. One or two sides are portions of conic sections. Individual detectors (2) within the array (1) can be continuous or discrete, and are organized into rows generally following the shape of the conic section(s). In either embodiment, time delay integration is performed row by row within the array (1) so as to equalize the sensitivity and resolution for each portion of the viewed scene. Several arrays (1) can be mounted within the carrier vehicle (8), mounted at different field angles. In this embodiment, the shape of the arrays (1) vary from a sector of a circle to rectangular.

대표청구항 ▼

A rotating sensor for imaging throughout a nearly hemispherical field of view with substantially constant resolution and sensitivity, said sensor comprising: a platform which rotates about a spin axis at a constant angular rate; mounted on the platform, a planar multi-detector array having the shape

A rotating sensor for imaging throughout a nearly hemispherical field of view with substantially constant resolution and sensitivity, said sensor comprising: a platform which rotates about a spin axis at a constant angular rate; mounted on the platform, a planar multi-detector array having the shape of a sector of a figure formed by up to two conic sections, said array comprising many detectors arranged in rows generally following the curvature of the conic sections; and means for performing time delay integration (TDI) on each of the rows of detectors in such a manner that the time consumed for each TDI is the same for each row.