Case study of design trade-offs for ternary phase-amplitude filters

David L. Flannery; William Earl Phillips; Richard L. Reel

doi:10.1117/12.49697

1 November 1991 Case study of design trade-offs for ternary phase-amplitude filters

David L. Flannery, William Earl Phillips, Richard L. Reel

Proceedings Volume 1564, Optical Information Processing Systems and Architectures III; (1991) https://doi.org/10.1117/12.49697
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

The ternary phase-amplitude filter (TPAF) is by definition restricted to the modulation values -1, 0, and 1, thus composing a binary phase-only filter (BPOF) multiplied by a binary- amplitude pattern, i.e., a region of support. The TPAF offers an attractive combination of real-time implementation with available devices and good correlation performance. Smart (optimized distortion-invariant) TPAF formulations have been developed. In applying smart filters, mixed optimizations are needed to address not only SNR (signal-to-noise) performance but other metrics addressing practical performance factors such as correlation efficiency. We have developed a design methodology that facilitates mixed optimizations and will report its application to two filter design cases involving a rotated and scaled target on several backgrounds.

Citation Download Citation

David L. Flannery, William Earl Phillips, and Richard L. Reel "Case study of design trade-offs for ternary phase-amplitude filters", Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); https://doi.org/10.1117/12.49697

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