MIT Lincoln Laboratory is developing a system for wide-area coverage day/night persistent surveillance. The sensor leverages unique digital- pixel focal plane arrays (DFPA) that are being developed at Lincoln Laboratory in conjunction with industry partners. MIT LL produces the readout integrated circuit (ROIC) which is mated to modestly sized Hg1- xCdxTe long-wave infrared detector arrays supplied by industry. WISP consists of a DFPA camera mounted into a continuously rotating 360-deg gimbal. A fast spinning polygon provides the cross scan for time-delay and integrate (TDI) operation. This paper presents the sensor design, operation, and recent data.
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