초록

A pair of rotating gimbals (12, 14) independently nutate and precess the line-of-sight (24) of a sensor (22) to generate a rosette pattern (26).

대표청구항 ▼

In an aircraft having a roll axis and including a window, a rosette scan surveillance and tracking apparatus providing a hyper-hemispherical field-of-regard, comprising: first means rotatable about a precession axis which is coaxial with the roll axis; second means rotatable about a nutation axis wh

In an aircraft having a roll axis and including a window, a rosette scan surveillance and tracking apparatus providing a hyper-hemispherical field-of-regard, comprising: first means rotatable about a precession axis which is coaxial with the roll axis; second means rotatable about a nutation axis which is angled from the precession axis at a first angle; a sensor having a field-of-view rotatable with said second means and having a line-of-sight on a line-of-sight axis which intersects with the nutation axis at an intersection and is angled therefrom by an angle equal to the first angle; and means positioning the intersection of the line-of-sight axis and the nutation axis with respect to the window for minimizing the size thereof.