Method to Estimate Impulse-Radio Ultra-Wideband Peak Power

Pflug, Hans W.; Romme, Jac; Philips, Kathleen; Groot, Harmke de

doi:10.1109/tmtt.2011.2114201

Cited by 10 publications

(7 citation statements)

References 10 publications

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“…The effective radiated peak power is 0 dBm. The waveform configuration together with the transmitting power allows satisfying the limits of all the worldwide UWB indoor radio regulations in terms of both power spectral density (−41.3 dBm/MHz) and peak power (0 dBm/50 MHz) [52].…”

Section: Radar Sensormentioning

confidence: 99%

Enabling Robust Radar-Based Localization and Vital Signs Monitoring in Multipath Propagation Environments

Mercuri

Polito

et al. 2021

IEEE Trans. Biomed. Eng.

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Over the last two decades, radarbased contactless monitoring of vital signs (heartbeat and respiration rate) has raised increasing interest as an emerging and added value to health care. However, until now, the flaws caused by indoor multipath propagation formed a fundamental hurdle for the adoption of such technology in practical healthcare applications where reliability and robustness are crucial. Multipath reflections, originated from one person, combine with the direct signals and multipaths of other people and stationary objects, thus jeopardizing individual vital signs extraction and localization. This work focuses on tackling indoor multipath propagation. Methods: We describe a methodology, based on accurate models of the indoor multipaths and of the radar signals, that enables separating the undesired multipaths from desired signals of multiple individuals, removing a key obstacle to real-world contactless vital signs monitoring and localization. Results: We also demonstrated it by accurately measure individual heart rates, respiration rates, and absolute distances (range information) of paired volunteers in a challenging real-world office setting. Conclusion: The approach, validated using a frequency-modulated continuous wave (FMCW) radar, was shown to function in an indoor environment where radar signals are severely affected by multipath reflections. Significance: Practical applications arise for health care, assisted living, geriatric and quarantine medicine, rescue and security purposes.

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Section: Radar Sensormentioning

confidence: 99%

Enabling Robust Radar-Based Localization and Vital Signs Monitoring in Multipath Propagation Environments

Mercuri

Polito

et al. 2021

IEEE Trans. Biomed. Eng.

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“…An in-depth analytical and also experimental approach is presented in [58]. Besides presenting WPAN standard definitions, the authors provide analytical results of a method to estimate the peak power of IR-UWB pulse.…”

Section: Compact Comparison Of the Standardsmentioning

confidence: 99%

An Ultra Wideband Survey: Global Regulations and Impulse Radio Research Based on Standards

Niemelä

Haapola

Hämäläinen

et al. 2017

IEEE Commun. Surv. Tutorials

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This article presents an updated survey on research related to Ultra Wideband (UWB) communications, particularly that of impulse radio (IR) technology. In addition to the research, we survey UWB physical layer (PHY) specifications of the two existing standardsthe IEEE 802.15.6-2012 and the IEEE 802.15.4-2015 -as well as the leading global UWB spectrum regulatory limitations which have been updated recently. The latter standard including the UWB specifications was first published in 2007 and the latest revision dates to 2015. The focus in this article is the period from 2007 to 2015. Our purpose is to provide an in-depth survey with a clearly specified topic together with the standard specifications and the related regulatory restrictions. Additionally, the last part of the article discusses the possibilities of increasing the current IR-UWB data rates to meet increasing future demands.

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“…The higher it is, the higher is the sensitivity in detecting submillimeter motions as the ones caused by the cardiopulmonary activity [8]. Sub-10 GHz (i.e., RF) radars have both a sufficient sensitivity in detecting vital signs and a sufficient bandwidth for localization [9], [10], therefore they are good candidates for people monitoring. Moreover, they present lower phase noise and path loss than the mm-wave solutions.…”

mentioning

confidence: 99%

“…This operation requires hence a short pulse repetition interval (PRI) among the groups. It should be specified that transmitting multiple waveforms (as for MIMO and beam-steering radars) involves a tradeoff between radiated power and PRI in order to satisfy the UWB spectral mask requirements [10]. Since the PRI cannot be increased too much (to avoid violating the Nyquist theorem when extracting the Doppler signals), the transmitted power should be decreased.…”

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confidence: 99%

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2-D Localization, Angular Separation and Vital Signs Monitoring Using a SISO FMCW Radar for Smart Long-Term Health Monitoring Environments

Mercuri

Sacco

Hornung

et al. 2021

IEEE Internet Things J.

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Method to Estimate Impulse-Radio Ultra-Wideband Peak Power

Cited by 10 publications

References 10 publications

Enabling Robust Radar-Based Localization and Vital Signs Monitoring in Multipath Propagation Environments

Enabling Robust Radar-Based Localization and Vital Signs Monitoring in Multipath Propagation Environments

An Ultra Wideband Survey: Global Regulations and Impulse Radio Research Based on Standards

2-D Localization, Angular Separation and Vital Signs Monitoring Using a SISO FMCW Radar for Smart Long-Term Health Monitoring Environments

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