Image scanning on a sparsely populated focal plane array to achieve nyquist sampling

摘要

An apparatus includes: a focal plane array (FPA) of receivers for a passive millimeter wave camera, the FPA comprising: receivers configured to sample an image, the image comprising one or more regions, the receivers arranged in an array of dimensions m rows by n columns, and a scanning reflector configured to move, thereby moving an image of the scene across the FPA transverse to the receiver columns.