Dr. Robert Mingesz Profile

Dr. Robert Mingesz

at Univ of Szeged

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Publications (6)

Proceedings Article | 21 November 2013 Paper

A unified optical damage criterion based on the probability density distribution of detector signals

T. Somoskoi, Cs. Vass, M. Mero, R. Mingesz, Z. Bozoki, K. Osvay

Proceedings Volume 8885, 88850N (2013) https://doi.org/10.1117/12.2030341

KEYWORDS: Signal detection, Sensors, Light scattering, Photoacoustic spectroscopy, Laser induced damage, Optical damage, Target detection, Scattering, Optical inspection, Photodiodes

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Proceedings Article | 8 June 2007 Paper

Thermal noise informatics: totally secure communication via a wire, zero-power communication, and thermal noise driven computing

Laszlo Kish, Robert Mingesz, Zoltan Gingl

Proceedings Volume 6600, 660003 (2007) https://doi.org/10.1117/12.727078

KEYWORDS: Information security, Quantum communications, Resistors, Telecommunications, Clocks, Interference (communication), Resistance, Capacitance, Error analysis, Modulation

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Very recently, it has been shown that Gaussian thermal noise and its artificial versions (Johnson-like noises) can be utilized as an information carrier with peculiar properties therefore it may be proper to call this topic Thermal Noise Informatics. Zero Power (Stealth) Communication, Thermal Noise Driven Computing, and Totally Secure Classical Communication are relevant examples. In this paper, while we will briefly describe the first and the second subjects, we shall focus on the third subject, the secure classical communication via wire. This way of secure telecommunication utilizes the properties of Johnson(-like) noise and those of a simple Kirchhoff's loop. The communicator is unconditionally secure at the conceptual (circuit theoretical) level and this property is (so far) unique in communication systems based on classical physics. The communicator is superior to quantum alternatives in all known aspects, except the need of using a wire. In the idealized system, the eavesdropper can extract zero bit of information without getting uncovered. The scheme is naturally protected against the man-in-the-middle attack. The communication can take place also via currently used power lines or phone (wire) lines and it is not only a point-to-point communication like quantum channels but network-ready. We report that a pair of Kirchhoff-Loop-Johnson(-like)-Noise communicators, which is able to work over variable ranges, was designed and built. Tests have been carried out on a model-line with ranges beyond the ranges of any known direct quantum communication channel and they indicate unrivalled signal fidelity and security performance. This simple device has single-wire secure key generation/sharing rates of 0.1, 1, 10, and 100 bit/second for copper wires with diameters/ranges of 21 mm / 2000 km, 7 mm / 200 km, 2.3 mm / 20 km, and 0.7 mm / 2 km, respectively and it performs with 0.02% raw-bit error rate (99.98 % fidelity). The raw-bit security of this practical system significantly outperforms raw-bit quantum security. Current injection breaking tests show zero bit eavesdropping ability without setting on the alarm signal, therefore no multiple measurements are needed to build an error statistics to detect the eavesdropping as in quantum communication. Wire resistance based breaking tests of Bergou-Scheuer-Yariv type give an upper limit of eavesdropped raw bit ratio is 0.19 % and this limit is inversely proportional to the sixth power of cable diameter. Hao's breaking method yields zero (below measurement resolution) eavesdropping information.

Proceedings Article | 8 June 2007 Paper

Utilising jitter noise in the precise synchronisation of laser pulses

Róbert Mingesz, Zoltán Gingl, Gábor Almási, Péter Makra

Proceedings Volume 6600, 66000Z (2007) https://doi.org/10.1117/12.724686

KEYWORDS: Pulsed laser operation, Control systems, Error control coding, Stochastic processes, Signal detection, Laser systems engineering, Laser stabilization, Detection and tracking algorithms, Microcontrollers, Target detection

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Proceedings Article | 23 May 2005 Paper

Cross-spectral analysis of signal improvement by stochastic resonance in bistable systems

Robert Mingesz, Peter Makra, Zoltan Gingl

Proceedings Volume 5845, (2005) https://doi.org/10.1117/12.609421

KEYWORDS: Signal to noise ratio, Interference (communication), Stochastic processes, Digital signal processing, Signal processing, Information theory, Systems modeling, Signal analyzers, Digital filtering, Detection theory

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Proceedings Article | 25 May 2004 Paper

Digital signal processor (DSP)-based 1/f alpha noise generator

Robert Mingesz, Peter Bara, Zoltan Gingl, Peter Makra

Proceedings Volume 5473, (2004) https://doi.org/10.1117/12.547110

KEYWORDS: Digital signal processing, Digital filtering, Signal processing, Interference (communication), Optical filters, Numerical simulations, Human-machine interfaces, Clocks, Analog filtering, Control systems

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Proceedings Article | 30 April 2003 Paper

Level-crossing time statistics of Gaussian 1/fª noises

Robert Mingesz, Zoltan Gingl, Peter Makra

Proceedings Volume 5110, (2003) https://doi.org/10.1117/12.496960

KEYWORDS: Numerical simulations, Ion channels, Switching, Time metrology, Solids, Stochastic processes, Statistical analysis, Interference (communication), Digital filtering, Nose

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Showing 5 of 6 publications

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