On-board radiometric preprocessing for multispectral linear arrays /MLA/A program that was undertaken to design, fabricate, and test a real-time hardwired data preprocessor is described, which applies a calibration normalization to each detector in a 576-element linear photodiode array. Various calibration problems were uncovered, such as those (1) due to system noise in recording the calibration tables, or (2) due to thermal drift and (3) due to the original quantization process. It was determined that in this experiment, noise and thermal drift led to fixed errors in the normalization of responses on the order of + or - 10 counts, out of 255 counts for many of the detectors.
Document ID
19800033226
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Thompson, L. L. (NASA Goddard Space Flight Center Greenbelt, Md., United States)
Tracy, R. A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Frankel, D. G. (Westinghouse Defense and Electronic Systems Center Baltimore, Md., United States)