1. A scanning sensor system comprising: a detector array including a plurality of detector elements positioned at a predetermined spacing in a focal plane, each of said detector elements adapted when sampled to produce a detector output signal value representative of the integrated energy of said radiation applied to said detector element since said detector element was last sampled; means for scanning said array across a field of view; means for generating sampling signals to sample each of said detector elements, the sampling signals for each of said detector elements being identical in sampling frequency and having a predetermined time phase relationship; a plurality of delay means each coupled to one of said detector elements for delaying said detector output signal values of said coupled detector element by a predetermined delay value such that said delayed detector output signal values are out of time phase; and multiplexer means connected to each of said delay means for time multiplexing said delayed detector signal values as discrete signals on a single multiplexer output terminal.