NDLI: Signal Processing of Infrared Detectors with CCD's

Content Provider	IEEE Xplore Digital Library
Author	Felix, P. Portmann, J. Munier, B. Reboul, J.P.
Copyright Year	1979
Description	Author affiliation: THOMSON-CSF, Electron Tube Division, Paris, France (Felix, P.; Portmann, J.; Munier, B.; Reboul, J.P.)
Abstract	Because of its low-noise capability, high dynamic range and low power consumption, the CCD appears to be a potentially very useful tool for signal processing of linear and two-dimensional focal-plane arrays of infrared detectors. The signal processing operations include time delay and integration (TDI), multiplexing and filtering. We discuss in this paper the critical parameters of the detector-to-CCD coupling and the related limitations for the various kinds of thermal imaging scanners. Some of these parameters have been measured at 300 K and 77 K, especially the CCD's input transconductance, the input MOSFET coupling noise, the transfer noise in the CCD channel, and the threshold voltage dispersion. We also give some experimental results on the direct-injection coupling of a Pb Sn Te photovoltaíc detector array at 77 K to a silicon CCD multiplexer specially designed for the readout of infrared detectors. At present the $2.10^{10}$ $W^{-1}$ $cmHz^{1/2}$ measured equivalent detectivity is limited by the coupling noise in the channel of each input MOSFET. A $5.10^{10}$ $W^{-1}$ $cmHz^{1/2}$ equivalent detectivity is expected with 8 - 12 ¿m detectors operated at 60 K.
Starting Page	126
Ending Page	130
File Size	992207
Page Count	5
File Format	PDF
ISBN	0852962088
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1979-09-18
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	The Institution of Electrical Engineers
Subject Keyword	Signal processing Infrared detectors Array signal processing Charge coupled devices Sensor arrays Noise measurement MOSFET circuits Dynamic range Energy consumption Delay effects
Content Type	Text
Resource Type	Article

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