Results 271 to 280 of about 20,332 (292)
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Optimization of signal waveforms
IEEE Transactions on Information Theory, 1963A technique is described whereby it is possible to determine a set of waveforms that minimize the error rate for a digital communication system. The waveforms are generated from a finite set of orthogonal waveforms. Each character waveform has the same energy as any other character waveform.
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Continuous MIMO Radar Waveform Optimization
2019 IEEE International Conference on Signal, Information and Data Processing (ICSIDP), 2019Current waveform optimization for colocated Multiple-Input Multiple-Output (MIMO) radar focuses on pulsed radar. In this paper, we study waveform design for continuous waveform MIMO radar that steers transmit beams toward different directions in a time-division mode.
Aoya Wang +4 more
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Optimal Waveform Morphology for Defibrillation
1992Since the first human implant of a completely implantable cardiac defibrillator in 1980, research has focused on making the smallest, most efficient device. Currently the main size constraints of these devices are the battery and capacitor sizes [1]. If energy requirements for defibrillation could be reduced without affecting the efficacy of the device,
R. A. S. Cooper +4 more
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Optimal pseudorandom pulse position modulation ladar waveforms
Applied Optics, 2015An algorithm for generating optimal pseudorandom pulse position modulation (PRPPM) waveforms for ladar ranging is presented. Bistatic ladar systems using Geiger-mode avalanche photodiodes require detection of several pulses in order to generate sufficient target statistics to satisfy some detection decision rule.
David U, Fluckiger +2 more
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Optimal Recognition Of Neural Waveforms
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991, 2005The investigation of biological neural networks requires reliable classification of neural action potentials in extracellular recordings. When the signal-to-noise ratio is bw, when the spike waveforms gradually change shape and amplitude, or when spikes overlap, the current sorting techniques cannot provide robust on-line operation due to their noise ...
I.N. Bankman, K.O. Johnson, W. Schneider
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MRI gradient waveform design by numerical optimization
Magnetic Resonance in Medicine, 1993AbstractThis manuscript describes a method of gradient waveform design by nonlinear constrained optimization. Methods of formulation and solution of the waveform optimization problem are briefly described for minimization of root mean squared current and minimization of waveform moments.
O P, Simonetti, J L, Duerk, V, Chankong
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Peripheral nerve stimulation‐optimal gradient waveform design
Magnetic Resonance in Medicine, 2014PurposeModern magnetic resonance imaging scanners with high‐performance gradient systems have high maximum gradient strength (Gmax) and slew rate (Smax). Peripheral nerve stimulation (PNS) is often a more limiting factor for gradient waveform design than Gmax and Smax.
Rolf F, Schulte, Ralph, Noeske
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2014
Abstract A confluence of steady advances in radar enabling technologies, and ever increasing demands on radar performance in challenging environments, has afforded a re-examination of the fundamental theoretical framework upon which classical waveform design is based.
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Abstract A confluence of steady advances in radar enabling technologies, and ever increasing demands on radar performance in challenging environments, has afforded a re-examination of the fundamental theoretical framework upon which classical waveform design is based.
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Spatially irregular space-waveform coded CPFSK with full rank optimized waveforms
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, 2009A nonlinear modulation, the constant envelope CPM class being of particular interest, has multi-dimensional signal waveforms. We introduce a spatial code for multi-antenna CPFSK system using a different waveform (constellation) space on each antenna.
Jan Sykora, Kamil Anis
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Optimal waveform for detecting rank-one targets in waveform-dependent interference
Proceedings of 2011 IEEE CIE International Conference on Radar, 2011The design of optimal waveform for enhanced detection of rank-one targets is addressed. Rather than simultaneous design of waveform and matched filter maximizing the clutter-plus-noise ratio (SCNR), we design the optimal waveform maximizing the probability of detection under the Neyman-Pearson (NP) criterion.
null Xiaobo Deng, null Xiaoming Li
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