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Proceedings Paper

High Speed Charge-Coupled Device (CCD) Two-Dimensional Correlator
Author(s): B. E. Burke; A. M. Chiang; W. H. McGonagle; G. R. McCully; J. F. Melia
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Paper Abstract

A CCD-based two-dimensional correlator system is described which correlates a 256 x 256 image with a 32 x 32 reference in less than 1 second. The high computation rate (more than 100 million operations per second) is achieved using two high speed CCDs: a 32-stage programmable transversal filter (PTF) which correlates an analog signal with a set of 32 6-bit tap weights at a 5 MHz rate, and an accumulating memory which sums successive correlation records from the PTF. This system uses a technique which performs a series of one-dimensional correlations in the PTF and sums them in the accumulator to form the two-dimensional correlation. This approach is capable of considerable flexibility and can be extended to correlations of much larger image and reference sizes even with a transversal filter of limited length, and also to correlations of data of more than two dimensions.

Paper Details

Date Published: 28 December 1982
PDF: 6 pages
Proc. SPIE 0341, Real-Time Signal Processing V, (28 December 1982); doi: 10.1117/12.933709
Show Author Affiliations
B. E. Burke, Massachusetts Institute of Technology (United States)
A. M. Chiang, Massachusetts Institute of Technology (United States)
W. H. McGonagle, Massachusetts Institute of Technology (United States)
G. R. McCully, Massachusetts Institute of Technology (United States)
J. F. Melia, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 0341:
Real-Time Signal Processing V
Joel Trimble, Editor(s)

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