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Manifold Sensitivity Analysis of Frequency Diverse Array
IEEE Signal Processing Letters, 2020Frequency diverse array (FDA) is an emerging array technique, its essential array characteristics and corresponding potential applications have not been well studied. As array manifold plays an essential role in various array applications, this letter presents an FDA manifold sensitivity framework to analyze the impact of element position uncertainties.
Tianxing Liao, Wen-Qin Wang, Bang Huang
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Multiple sclerosis frequency in Israel’s diverse populations
Neurology, 2006Israel has served for almost half a century as a site for epidemiologic studies of multiple sclerosis (MS). Its small geographic size, well-equipped, accessible, and subsidized health facilities, trained physicians, detailed census data, and a National MS Register, maintained since 1960, offer advantages for accurate determinations of MS frequency in ...
Milton, Alter +3 more
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Digital beamforming in MIMO-radar with frequency diversity
2016 IEEE East-West Design & Test Symposium (EWDTS), 2016The aim of this work is to develop an algorithm of digital beam forming for coherent MIMO radar with frequency diversity. We discussed ways to simplify hardware implementation of MIMO radar using serial method of MIMO channel matrix forming. A model of probing waveform, which allows performing digital beam forming at functional level is proposed.
Vladimir Lobach +2 more
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A study of OFDM system applying frequency diversity
11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications. PIMRC 2000. Proceedings (Cat. No.00TH8525), 2002An OFDM system is widely known as a modulation scheme, which can reduce the effect of frequency selective fading. However, under a large frequency selective fading environment, it is difficult to demodulate correctly even with appropriate equalization. In this paper, an OFDM system applying a frequency diversity scheme is proposed.
Tsutomu Seki +3 more
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Performance evaluations of frequency diversity radar system
2007 European Microwave Conference, 2007Frequency diversity radar combines two or more conventional transceivers through a common antenna, in a multiplex arrangement on the same RF transmission channel. It significantly improves radar detection performance and reduces false alarms under adverse weather conditions, here in case of normal distributed background clutter.
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Macroscopic Diversity in Frequency Reuse Radio Systems
IEEE Journal on Selected Areas in Communications, 1987Macroscopic diversity is a technique that can facilitate high quality and ubiquitous communications between low-power portable radiotelephones and data terminals, and radio base stations (ports) that are connected to the local network. It uses radio signals from several base stations to mitigate the effect of shadow fading, a variation of signal ...
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Clustering-Based Frequency l-Diversity Anonymization
2009Privacy preservation is realized by transforming data into k-anonymous (k-anonymization) and l -diverse (l -diversification) versions while minimizing information loss. Frequency l -diversity is possibly the most practical instance of the generic l -diversity principle for privacy preservation.
Mohammad-Reza Zare-Mirakabad +2 more
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2012
Electronic scanning is the most desirable feature of state-of-the-art radar systems. With electronic scanning, it is possible to steer the main beam of an array antenna instantaneously into a desired direction where no mechanical mechanism is involved in the scanning process.
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Electronic scanning is the most desirable feature of state-of-the-art radar systems. With electronic scanning, it is possible to steer the main beam of an array antenna instantaneously into a desired direction where no mechanical mechanism is involved in the scanning process.
openaire +1 more source