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1. |
Record Nr. |
UNINA9910816240003321 |
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Autore |
Elbert Bruce R. |
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Titolo |
Radio frequency interference in communications systems / / Bruce R. Elbert |
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Pubbl/distr/stampa |
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Boston : , : Artech House, , 2016 |
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[Piscataqay, New Jersey] : , : IEEE Xplore, , [2016] |
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ISBN |
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1-5231-1755-9 |
1-60807-966-X |
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Descrizione fisica |
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1 online resource (229 pages) : illustrations |
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Collana |
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Artech House space technology and applications series |
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Disciplina |
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Soggetti |
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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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Nota di contenuto |
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Machine generated contents note: pt. I Radiocommunication Systems and the RFI Environment -- ch. 1 The What and Why of RFI in Radio and Wireless Communications -- 1.1. Engineering of Radiocommunication and Wireless Systems in Light of RFI -- 1.1.1. Efficient Use of Radio Spectrum -- 1.1.2. Frequency Band Assignments -- 1.1.3. Efficient Use of the Geostationary Satellite Orbit and Other Space Environments -- 1.2. Identifying RFI Modes and Consequences -- 1.3. Electromagnetic Compatibility and Spectrum Sharing -- 1.4. Addressing RFI When It Occurs -- References -- ch. 2 The Radiocommunication System in an Interference-Limited Environment -- 2.1. Radiocommunication Requirements -- 2.1.1. Who: The Organization or Market -- 2.1.2. What: Network Topology and Frequencies -- 2.1.3. Where: Locations to Be Served -- 2.1.4. When: Timing for Fixed, Mobile, or Temporary Communications -- 2.1.5. How: Equipment and Other Resources -- 2.2. Transmitters and Receivers -- 2.2.1. Modem Properties -- 2.2.2. Frequency Conversion and Amplification -- 2.2.3. Land-Based Radiocommunication Concepts -- 2.2.4. Space-Based Radiocommunication Concepts -- 2.2.5.Communications in Space Research and Remote Sensing -- 2.3. Antennas in Radiocommunication Services -- 2.3.1. Nondirectional Antenna Radiation Patterns -- 2.3.2. Waveguide Horns -- 2.3.3. Directional Antennas -- 2.3.4. Multiple Element (Yagi-Uda Array) -- 2.3.5. Reflector Aperture (Dish Antenna) |
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-- 2.3.6. Array of Elements (Flat-Panel Array) -- 2.3.7. Phased Array -- 2.3.8. Integrating RF Electronics with the Antenna -- References -- ch. 3 Key Concepts for Evaluating RFI -- 3.1. Manmade RFI (Unintentional and Intentional) -- 3.2. RF Intermodulation and Harmonics -- 3.3. Interference from Radars and Other Pulsed Sources -- 3.4. Protection Ratio and Receiver Sensitivity -- 3.4.1. How to Determine Receiver Threshold -- 3.4.2. Receiver Desensitization -- References -- pt. II Key Aspects of Radio Wave Propagation -- ch. 4 Link Properties Under Free Space Conditions -- 4.1. Path Geometries -- 4.1.1. Ground to Ground -- 4.1.2. Air to Ground -- 4.1.3. Space to Earth -- 4.1.4. Space to Space -- 4.2. Line-of-Sight Propagation Characteristics in Atmosphere -- 4.2.1. Coupling to the Antenna -- 4.2.2. Alternative Measures of Signal Strength -- 4.2.3. Atmospheric Loss -- 4.2.4. Rain Attenuation -- 4.2.5. Tropospheric Scatter -- References -- ch. 5 Propagation on Obstructed Paths -- 5.1. Path Profiles and Obstructions -- 5.2. Fading on Direct and Blocked Paths -- 5.2.1. Direct and Reflected Signals: Vector Addition -- 5.2.2. Ricean Multipath Fading -- 5.2.3. Rayleigh fading -- 5.3. Geographic Coverage Analysis -- 5.3.1. Path Computation Using Software -- 5.3.2. Measures of Radio Coverage -- 5.4.Complex Propagation Models -- 5.4.1. Okumura and Hata Macroscopic Propagation Models -- 5.4.2. ITS: Longley-Rice Models -- References -- pt. III RFI Assessment and Resolution Methodologies -- ch. 6 Interference Protection Ratio (C/I) and Its Application -- 6.1.C/I Criteria -- 6.1.1. Calculation of Static Values -- 6.1.2. Antenna Characteristics and Isolation -- 6.2. Non-Steady State Propagation: Scatter, Rain-Induced Interference, Ionospheric Conditions -- 6.3. Service Performance in the Presence of Interference -- 6.4. Interference Among Various Systems -- 6.4.1. Radars vs. Land Mobile Systems -- 6.4.2. Protection of GPS from Terrestrial Wireless Systems -- 6.5. Satellite Communications vs. Terrestrial Microwave Systems -- References -- ch. 7 RFI Resolution Techniques -- 7.1. Spectrum Analysis and Monitoring -- 7.1.1. Spectrogram View and Adjustment -- 7.2. Spectrum Monitoring and Carrier Measurement -- 7.3. Interference Location and Radio Direction Finding -- 7.4. Transmitter ID -- 7.5. Additional Resources and Strategies -- 7.5.1. Planning and Coordination -- 7.5.2. Research and Testing -- 7.5.3. Remediation -- References -- ch. 8 How to Identify, Prevent, and Fix Common RFI problems -- 8.1. Frequency Planning Techniques -- 8.1.1. Frequency Assignment -- 8.1.2. Transmitter Control and ID -- 8.1.3. Interleaving Spectra and Band Segmentation -- 8.1.4. Power Control -- 8.2. Avoiding Intermodulation -- 8.3. Interference Cancellation -- 8.3.1. Cancellation at RF (Antenna) -- 8.3.2. Cancellation at IF -- 8.3.3. Cancellation at Baseband (Postdetection) -- 8.4. RFI as an Incident Needing Effective Tools and Management -- References -- ch. 9 Prospective for RFI Resolution in Future Radiocommunication Systems -- 9.1. New Approaches to Interference Management -- 9.2. Cognitive Radio -- 9.3. Spectrum Management Tools and Resources -- 9.3.1. Licensed Shared Access -- 9.3.2. Model Cities Demonstrations -- 9.3.3. Spectrum Monitoring and RFI Remediation -- References. |
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2. |
Record Nr. |
UNINA9910483181403321 |
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Titolo |
Sustainability in the Built Environment in the 21st Century: Lessons Learned from India and the Region / / edited by Usha Iyer-Raniga |
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Pubbl/distr/stampa |
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Cham : , : Springer International Publishing : , : Imprint : Springer, , 2021 |
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ISBN |
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Edizione |
[1st ed. 2021.] |
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Descrizione fisica |
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1 online resource (251 pages) |
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Collana |
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Environmental Science and Engineering, , 1863-5539 |
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Disciplina |
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Soggetti |
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Environmental education |
Ecology |
Sustainable architecture |
Sociology, Urban |
Human geography |
Urban ecology (Biology) |
Environmental and Sustainability Education |
Environmental Sciences |
Sustainable Architecture/Green Buildings |
Urban Sociology |
Human Geography |
Urban Ecology |
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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 contenuto |
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Partnerships for Anganwadi and educational imperatives -- Education for the future focusing on Indonesia -- Traditional/vernacular master planning in South India- Agraharam -- Traditional/vernacular in Sri Lanka -- Developing design guidelines for Anganwadi -- Social sustainability and its impact on planning -- Community participation for Anganwadi -- Smart city in India and governance -- Carrying capacity in Gwalior using the SAFE model -- Urban quality of life indicators in New Delhi. |
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Sommario/riassunto |
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This book follows on previous works addressing sustainable |
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development research in the Asia-Pacific region. It mainly focuses on India, a country currently facing immense challenges in the form of climate change, rapid urbanisation, and population pressures in its journey to help achieve the Sustainable Development Goals. Expecting to surpass China in terms of population in the near future, India needs to develop its own solutions in order to uphold its commitments under the Paris Agreement. This book makes a contribution in that direction by presenting case studies on various aspects of the built environment, from education to managing cities, procurement, and considerations for a circular economy. The papers gathered here offer a vital resource for government policymakers, educators, and current and future professionals, equipping them with the knowledge and expertise they need in order to overcome today’s complex challenges in the built environment. |
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