Computer Science
Scientific paper
Jul 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992spie.1684..239m&link_type=abstract
In: Infrared readout electronics; Proceedings of the Meeting, Orlando, FL, Apr. 21, 22, 1992 (A93-53076 23-33), p. 239-246.
Computer Science
Analog To Digital Converters, Digital Electronics, Focal Plane Devices, Infrared Imagery, Readout, Cryogenic Equipment, Integrated Circuits, Signal Processing, Signal To Noise Ratios
Scientific paper
It is generally accepted that sensor systems can benefit from some form of on-focal-plane A/D conversion in terms of overall system noise improvement. The issue of whether or not the Delta-Sigma modulation process can be applied to the development of an approach using conventional A/D converters or cryogenic circuit materials is addressed from the standpoint of the scanning focal plane. Each pixel row of the scanning sensor is treated as a continuous analog signal source with a fixed signal bandwidth. By allocating a Delta-Sigma converter per sensor pixel row, theory predicts the oversample rate required to achieve the designed conversion resolution. The Delta-Sigma consists of two major parts. The modulator, which samples the analog input and develops a corresponding digital bit stream, and the digital signal processor, which compresses the bit stream into the Nyquist rate multibit codes and performs noise filtering, are described. Only the modulator needs to be on the focal plane since its output is digital. This reduces the development problem to one of fitting the modulator only into the allocated space and power budget per sensor.
Mandl William
Rutschow Carl
No associations
LandOfFree
All digital monolithic scanning readout based on Sigma-Delta analog to digital conversion does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with All digital monolithic scanning readout based on Sigma-Delta analog to digital conversion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and All digital monolithic scanning readout based on Sigma-Delta analog to digital conversion will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1532642