Statistics – Applications
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1684..257h&link_type=abstract
In: Infrared readout electronics; Proceedings of the Meeting, Orlando, FL, Apr. 21, 22, 1992 (A93-53076 23-33), p. 257-266.
Statistics
Applications
Digital Electronics, Focal Plane Devices, Infrared Imagery, Integrated Circuits, Signal Processing, Analog To Digital Converters, Charge Coupled Devices, Multiplexing, Real Time Operation
Scientific paper
The design, fabrication, and testing of a state-of-the-art, high-throughput on-focal plane IR-image signal processor is described. The processing functions performed are frame differencing and thresholding. The final focal plane array will consist of a 128 x 128-pixel platinum-silicide detector bump-mounted to an on-chip CCD multiplexer. The processor is in a 128-channel parallel-pipeline format. Each channel consists of a pixel regenerator (charge differencer), 128-pixel frame store CCD memory, pixel differencer, second pixel regenerator, thresholder (analog comparator), and digital latch. Four parallel analog outputs and four parallel digital outputs are included. The digital outputs provide a bit map of the image. All analog clock signals (128 KHz, 256 KHz, and 5 MHz) are generated by on-chip TTL-input clock drivers. TTL clock driver inputs are generated off-chip. The technology is low-temperature surface and buried channel CCD/CMOS/indium bump. The design goal was 8-bit resolution at 77 K and 1000 frames/s. Applications include point- or extended-target motion detection with thresholding. Design trade-offs and enhancements (such as on-chip detector gain compensation and a simple window processor) are discussed.
Fossum Eric
Hanzal Brian
Peczalski Andrzej
Sanderson Richard
Schwanebeck James
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