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1. |
Record Nr. |
UNINA9910139016203321 |
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Autore |
Li Changzhi <1982-> |
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Titolo |
Microwave noncontact motion sensing and analysis / / Changzhi Li, Jenshan Lin |
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Pubbl/distr/stampa |
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Hoboken, New Jersey : , : John Wiley & Sons Inc., , [2014] |
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©2014 |
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ISBN |
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1-118-74256-7 |
1-118-74255-9 |
1-118-74279-6 |
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Descrizione fisica |
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1 online resource (220 p.) |
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Collana |
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Wiley series in microwave and optical engineering |
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Classificazione |
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Altri autori (Persone) |
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Disciplina |
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Soggetti |
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Motion detectors |
Microwave detectors |
Motion - Measurement |
Radar |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Bibliographic Level Mode of Issuance: Monograph |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Preface xi 1 Introduction 1 1.1 Background, 1 1.2 Recent Progress on Microwave Noncontact Motion Sensors, 2 1.2.1 Microwave/Millimeter-Wave Interferometer and Vibrometer, 2 1.2.2 Noncontact Vital Sign Detection, 3 1.3 About This Book, 4 2 Theory of Microwave Noncontact Motion Sensors 7 2.1 Introduction to Radar, 7 2.1.1 Antennas, 8 2.1.2 Propagation and Antenna Gain, 10 2.1.3 Radio System Link and Friis Equation, 13 2.1.4 Radar Cross Section and Radar Equation, 15 2.1.5 Radar Signal-To-Noise Ratio, 16 2.1.6 Signal-Processing Basics, 17 2.2 Mechanism of Motion Sensing Radar, 18 2.2.1 Doppler Frequency Shift, 18 2.2.2 Doppler Nonlinear Phase Modulation, 19 2.2.3 Pulse Radar, 26 2.2.4 FMCW Radar, 27 2.2.5 Comparison of Different Detection Mechanisms, 29 2.3 Key Theory and Techniques of Motion Sensing Radar, 31 2.3.1 Null and Optimal Detection Point, 31 2.3.2 Complex Signal Demodulation, 33 2.3.3 Arctangent Demodulation, 34 2.3.4 Double-Sideband Transmission, 36 2.3.5 Optimal Carrier Frequency, 43 2.3.6 Sensitivity: Gain and Noise Budget, 49 3 Hardware Development of Microwave Motion Sensors 53 3.1 Radar Transceiver, |
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53 3.1.1 Bench-Top Radar Systems, 53 3.1.2 Board Level Radar System Integration, 61 3.1.3 Motion Sensing Radar-On-Chip Integration, 63 3.1.4 Pulse-Doppler Radar and Ultra-Wideband Technologies, 85 3.1.5 FMCW Radar, 89 3.2 Radar Transponders, 92 3.2.1 Passive Harmonic Tag, 93 3.2.2 Active Transponder for Displacement Monitoring, 95 3.3 Antenna Systems, 99 3.3.1 Phased Array Systems, 99 3.3.2 Broadband Antenna, 100 3.3.3 Helical Antenna, 103 4 Advances in Detection and Analysis Techniques 107 4.1 System Design and Optimization, 107 4.1.1 Shaking Noise Cancellation Using Sensor Node Technique, 107 4.1.2 DC-Coupled Displacement Radar, 111 4.1.3 Random Body Movement Cancellation Technique, 116 4.1.4 Nonlinear Detection of Complex Vibration Patterns, 124 4.1.5 Motion Sensing Based on Self-Injection-Locked Oscillators, 131 4.2 Numerical Methods: Ray-Tracing Model, 136 4.3 Signal Processing, 141 4.3.1 MIMO, MISO, SIMO Techniques, 141 4.3.2 Spectral Estimation Algorithms, 142 4.3.3 Joint Time-Frequency Signal Analysis, 153 5 Applications and Future Trends 157 5.1 Application Case Studies, 158 5.1.1 Assisted Living and Smart Homes, 158 5.1.2 Sleep Apnea Diagnosis, 164 5.1.3 Wireless Infant Monitor, 169 5.1.4 Measurement of Rotational Movement, 173 5.1.5 Battlefield Triage and Enemy Detection, 178 5.1.6 Earthquake and Fire Emergency Search and Rescue, 179 5.1.7 Tumor Tracking in Radiation Therapy, 180 5.1.8 Structural Health Monitoring, 185 5.2 Development of Standards and State of Acceptance, 194 5.3 Future Development Trends, 196 5.4 Microwave Industry Outlook, 202 References 203 Index 215 |
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Sommario/riassunto |
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"Compiling the authors? combined decades of experience, Microwave Noncontact Motion Sensing and Analysis sheds light on microwave noncontact vital sign detection from bench-top module to CMOS integrated microchip, covering a frequency range of over 30 GHz. Providing timely coverage of a technology integral to the future healthcare of the elderly, the text presents a full-bodied history of this technology, introduces current developments, and reveals future trends. Practicing engineers and researchers will discover the theory and technical details of related technologies, as well as a wide range of applications in healthcare, military, and industry"-- |
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2. |
Record Nr. |
UNINA9910330707003321 |
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Autore |
Edkins Jenny |
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Titolo |
Change and the politics of certainty / / Jenny Edkins |
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Pubbl/distr/stampa |
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Manchester, UK, : Manchester University Press, 2019 |
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Manchester, UK : , : Manchester University Press, , 2019 |
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©2019 |
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ISBN |
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Descrizione fisica |
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1 online resource (245 pages) : illustrations (black and white); digital, PDF file(s) |
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Disciplina |
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Soggetti |
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Social change - Political aspects |
Change - Social aspects |
Political science |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Sommario/riassunto |
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Despite the imperative for change in a world of persistent inequality, racism, oppression and violence, difficulties arise once we try to bring about a transformation. As scholars, students and activists, we may want to change the world, but we are not separate, looking in, but rather part of the world ourselves. The book demonstrates that we are not in control: with all our academic rigour, we cannot know with certainty why the world is the way it is, or what impact our actions will have. It asks what we are to do, if this is the case, and engages with our desire to seek change. Chapters scrutinise the role of intellectuals, experts and activists in famine aid, the Iraq war, humanitarianism and intervention, traumatic memory, enforced disappearance, and the Grenfell Tower fire, and examine the fantasy of security, contemporary notions of time, space and materiality, and ideas of the human and sentience. Plays and films by Michael Frayn, Chris Marker and Patricio Guzmán are considered, and autobiographical narrative accounts probe the author’s life and background. The book argues that although we might need to traverse the fantasy of certainty and security, we do not need to give up on hope. |
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3. |
Record Nr. |
UNINA9910779651403321 |
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Autore |
Morris Mitchell <1961-> |
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Titolo |
The persistence of sentiment [[electronic resource] ] : display and feeling in popular music of the 1970s / / Mitchell Morris |
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Pubbl/distr/stampa |
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Berkeley, : University of California Press, 2013 |
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ISBN |
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Descrizione fisica |
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1 online resource (259 p.) |
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Disciplina |
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Soggetti |
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Popular music - United States - 1971-1980 - History and criticism |
Singers - United States |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Front matter -- Contents -- Acknowledgments -- 1. Introduction -- 2. Black Masculinity and the Sound of Wealth -- 3. Transport and Interiority in Soft Soul -- 4. The Audience and Barry Manilow -- 5. The Voice of Karen Carpenter -- 6. Cher's "Dark Ladies" -- 7. Crossing Over with Dolly Parton -- Notes -- Works Cited -- Index |
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Sommario/riassunto |
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How can we account for the persistent appeal of glossy commercial pop music? Why do certain performers have such emotional power, even though their music is considered vulgar or second rate? In The Persistence of Sentiment, Mitchell Morris gives a critical account of a group of American popular music performers who have dedicated fan bases and considerable commercial success despite the critical disdain they have endured. Morris examines the specific musical features of some exemplary pop songs and draws attention to the social contexts that contributed to their popularity as well as their dismissal. These artists were all members of more or less disadvantaged social categories: members of racial or sexual minorities, victims of class and gender prejudices, advocates of populations excluded from the mainstream. The complicated commercial world of pop music in the 1970's allowed the greater promulgation of musical styles and idioms that spoke to and for exactly those stigmatized audiences. In more recent years, beginning with the "Seventies Revival" of the early 1990's, additional perspectives and layers of interpretation have allowed not only a deeper understanding of these songs' function than when they |
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were first popular, but also an appreciation of how their significance has shifted for American listeners in the succeeding three decades. |
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