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Combining and updating the author's two definitive volumes on electronic intelligence (ELINT), this is your indispensable reference on radar's role in ELINT. Starting with the basic theory of range equations and probability of intercept, the book examines ELINT systems characteristics, performance issues, and essential functions. It gives you new insight into PRI and intrapulse analysis so you can obtain better results and more data for identifying signals. Supported with over 240 illustrations and more nearly 300 equations, this in-depth resource helps you more fully understand the benefits and limitations of ELINT information that is so crucial in electronic warfare You learn how to draw more cohesive conclusions about radar's capabilities that are implied by observed signal parameters. Moreover, the book teaches you how to recognize the strengths and weaknesses of different receiver configurations and master the challenges of LPI radar signals.
Table Of Contents
Character and Basis of Electronic Intelligence (ELINT)Role of ELINT in Electronic Warfare. Characteristics of Radar Signals. Ultimate Limits. ELINT Data: Distribution and Use.; Radar Range and Interception RangeRange Equations. Signal to Noise Ratio Requirements. Threshold Detection.; Probability of InterceptionDefinition. Mathematical Models and Periodic Coincidences. Frequency Agile Radar Example.; ELINT Interception System CharacteristicsSensitivity, Bandwidth, and Dynamic Range. Narrowband and Wideband. ; Direction FindingRotating Antennas. Time, Amplitude, and Phase Comparison.; Emitter LocationTriangulation. Time and Frequency Difference Techniques. ; LPI Radar and the Future of ELINTQuiet Radar Defined. Fundamental Limitations. ELINT Receiver Strategies.; Estimating Power at the TransmitterRange Equation Considerations. Range Estimation. Error Analysis.; Estimating Radar Antenna ParametersPolarization. Cross Polarization. Antenna Beam Shapes. Sidelobe Levels and Positions. Array Antennas Considerations. ; Antenna Beam Scan AnalysisSearch Strategies. Energy on Target Considerations. Fan Beam Circular and Sector Scans. Pencil Beam Acquisition and Tracking. ; Intrapulse AnalysisEstimating Pulse Envelope Parameters. Unintentional Modulation. Specific Emitter Identifications.; Pulse Repetition Interval AnalysisPRI Categories and Types. Time Interval Measurement Accuracy. PRI Estimation. Histograms. PRI and Radar Range and Velocity Ambiguities.; Deinterleaving Pulse TrainsAnalog/Real Time Gating. Limit on the Number of Pulse Trains. Using Amplitude, AOA, TDOA, FDOA, and RF for Deinterleaving.; RF and Coherence EstimationCarrier Frequency Determination. Radar Performance Requirements for Coherence. Time Domain and Frequency Domain Coherence Measures. ; Determining ELINT Parameter LimitsStatistical Techniques. Histograms and Two Sigma Limits. Most Probable Values/Modes.; ELINT Data Files and ApplicationsData Bases. Signal Identification. ELINT Data Used to Construct Emitter Identification Tables.; Appendices.;