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- Dane L. Flannery, Eamonn A. O'Brien
- IJAC
- 2005

- B A Kast, M K Giles, S D Lindell, D L Flannery
- Applied optics
- 1989

Ternary modulation can be achieved with a single SLM and improvedc orrelationd iscriminationc an bee xperimentally realized.

- D L Flannery, J S Loomis, M E Milkovich
- Applied optics
- 1988

A method of formulating ternary-valued (-1,0,1) correlation filters based on the ratio of spectral energies of target and nontarget patterns is proposed, and performance of such filters is investigated by computer simulations of correlation. The results confirm the intuitive expectation that such filters can enhance signalto- clutter and discrimination… (More)

- D. L. Flannery
- 1995

It is conjectured that binary cocyclic matrices are a uniform source of Hadamard matrices. In testing this conjecture, it is useful to have a general method of calculating cocyclic matrices. We present such a method in this paper. The method draws on standard cohomology theory of finite groups. In particular we employ the Universal Coefficient Theorem,… (More)

- Warwick de Launey, Dane L. Flannery, Kathy J. Horadam
- Discrete Applied Mathematics
- 2000

This article examines aspects of the theory of locally nilpotent linear groups. We also present a new classification result for locally nilpotent linear groups over an arbitrary field F. Linear (matrix) groups are a commonly used concrete representation of groups. The first investigations of linear groups were undertaken in the second half of the 19th… (More)

- D L Flannery, A M Biernacki, J S Loomis, S L Cartwright
- Applied optics
- 1986

- D L Flannery, J S Loomis, M E Milkovich
- Applied optics
- 1988

The basic design elements of binary phase-only filters (BPOFs) include the angle of a thresholding line in the complex plane and the offset from a center reference point of the pattern transformed in constructing the filter. These factors are analyzed, and a general formalism for the threshold-line angle variation is presented and related to the special… (More)

- D Flannery, S W James, R P Tatam, G J Ashwell
- Optics letters
- 1997

Evanescent coupling between a side-polished single-mode optical fiber and a single-mode, pH-sensitive Langmuir-Blodgett overlay is used to demonstrate an intrinsic fiber-optic pH sensor. The sensor shows a wavelength sensitivity of 18.8 +/- 0.8 nm/pH and a transmission sensitivity of 9.7 +/- 0.8 dB/pH when operating at 750 nm.

We classify all the cocyclic Butson Hadamard matrices BH(n, p) of order n over the pth roots of unity for an odd prime p and np ≤ 100. That is, we compile a list of matrices such that any cocyclic BH(n, p) for these n, p is equivalent to exactly one element in the list. Our approach encompasses non-existence results and computational machinery for Butson… (More)