Systems and methods for millimeter and sub-millimeter wave imaging

摘要

In one aspect, the present invention provides an apparatus (10) for imaging. At least one source (12) (or 12/14) of composite radiation illuminates a field of view which includes object (3). The radiation includes a set of multiple phase-independent partials that are independently controllable and exhibit distinct physical features. A quasi-optical element (21) is disposed between the field of view and a multi-element receiver (18). The multi-element receiver (18) is disposed to receive image radiation (28) from the quasi-optical element (21). Particular ones of the receiver elements transform the image radiation (28) into a set of electrical signals that include information relating to features of the partials