High Speed Charge-Coupled Device (CCD) Two-Dimensional Correlator

B. E. Burke; A. M. Chiang; W. H. McGonagle; G. R. McCully; J. F. Melia

doi:10.1117/12.933709

28 December 1982 High Speed Charge-Coupled Device (CCD) Two-Dimensional Correlator

B. E. Burke, A. M. Chiang, W. H. McGonagle, G. R. McCully, J. F. Melia

Proceedings Volume 0341, Real-Time Signal Processing V; (1982) https://doi.org/10.1117/12.933709
Event: 1982 Technical Symposium East, 1982, Arlington, United States

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.

Citation Download Citation

B. E. Burke, A. M. Chiang, W. H. McGonagle, G. R. McCully, and J. F. Melia "High Speed Charge-Coupled Device (CCD) Two-Dimensional Correlator", Proc. SPIE 0341, Real-Time Signal Processing V, (28 December 1982); https://doi.org/10.1117/12.933709

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