@article {6500,
	title = {Stochastic resonance-enhanced laser-based particle detector.},
	journal = {Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society.},
	volume = {2009},
	year = {2009},
	month = {2009},
	pages = {785-7},
	abstract = {<p>This paper presents a Laser-based particle detector whose response was enhanced by modulating the Laser diode with a white-noise generator. A Laser sheet was generated to cast a shadow of the object on a 200 dots per inch, 512 x 1 pixels linear sensor array. The Laser diode was modulated with a white-noise generator to achieve stochastic resonance. The white-noise generator essentially amplified the wide-bandwidth (several hundred MHz) noise produced by a reverse-biased zener diode operating in junction-breakdown mode. The gain in the amplifier in the white-noise generator was set such that the Receiver Operating Characteristics plot provided the best discriminability. A monofiber 40 AWG (approximately 80 microm) wire was detected with approximately 88\% True Positive rate and approximately 19\% False Positive rate in presence of white-noise modulation and with approximately 71\% True Positive rate and approximately 15\% False Positive rate in absence of white-noise modulation.</p>
},
	keywords = {Actigraphy, Animals, Computer-Assisted, Drosophila melanogaster, Equipment Design, Equipment Failure Analysis, Escape Reaction, Lasers, Photometry, Signal Processing, Stochastic Processes},
	issn = {1557-170X},
	doi = {10.1109/IEMBS.2009.5332748},
	author = {Dutta, A and Werner, C}
}
