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Radio frequency interference in communications systems / Bruce R. Elbert.
Elbert, Bruce R., author.
Boston : Artech House, 2016.

1 online resource : illustrations.
Artech House space technology and applications library.
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.
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Includes bibliographical references and index.
9781608079667 (electronic bk.)

160807966X (electronic bk.)


9781523117550 (electronic bk.)

1523117559 (electronic bk.)

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