Radio frequency interference in communications systems / / Bruce R. Elbert

• Autore: Elbert Bruce R.
• Pubblicazione: Boston : , : Artech House, , 2016; [Piscataqay, New Jersey] : , : IEEE Xplore, , [2016]
• Descrizione fisica: 1 online resource (229 pages) : illustrations
• Disciplina: 621.384
• Soggetto topico: Radio - Interference
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: 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) -- 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.
• Titolo autorizzato: Radio frequency interference in communications systems
• ISBN: 1-5231-1755-9; 1-60807-966-X
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910816240003321
• Lo trovi qui: Univ. Federico II
• Serie: Artech House space technology and applications library.