Electronic Warfare Target Location Methods, Second Edition

Geolocation is a process that utilizes sensors to pick up enemy emissions and locate electronic warfare (EW) targets. It is of particular interest among EW professionals because it allows them to use the enemy's own emissions to help set GPS coordinates and accurately pinpoint a target for attack. This is a newly revised and greatly expanded edition of a classic Artech House book. It offers practical guidance in electronic warfare target location. It features a wealth of additional material, including important new chapters on time delay estimation and direction finding techniques. It provides practitioners with critical information on a variety of geolocation algorithms and techniques.

Table of Contents:
Introduction to Emitter Geolocation -Introduction. Gradient Descent Algorithm. Concluding Remarks. ; Triangulation -Introduction. Basic Concepts. Least-Squares Error Estimation. Total Least-Squares Estimation. Least-Squares Distance Error PF Algorithm. Minimum Mean-Squares Error Estimation. The Discrete Probability Density Method. Generalized Bearings. Maximum Likelihood PF Algorithm. Multiple Sample Correlation. Bearing-Only Target Motion Analysis. Sources of Error in Triangulation. Concluding Remarks. ; DF Techniques -Introduction. Array Processing Direction of Arrival Measurement Methods. Other Methods of Estimating the AOA. MSE Phase Interferometer. DF with a Butler Matrix. Phase Difference Estimation Using SAW Devices. Concluding Remarks. ; MUSIC -Introduction. MUSIC Overview. MUSIC. Performance of MUSIC in the Presence of Modeling Errors. Determining the Number of Wavefields. Effect of Phase Errors on the Accuracy of MUSIC. Other Superresolution Algorithms. Concluding Remarks. ; Quadratic Position-Fixing Methods -Introduction. TDOA Position-Fixing Techniques. Differential Doppler. Range Difference Methods. Concluding Remarks. ; Time Delay Estimation -Introduction. System Overview. Cross Correlation. Generalized Cross-Correlation. Estimating the Time Delay with the Generalized Correlation Method. Time Delay Estimation Using the Phase of the Cross-Spectral Density. Effects of Frequency and Phase Errors in EW TDOA Direction-Finding Systems. Concluding Remarks. ; Single-Site Location Techniques -Introduction. HF Signal Propagation. Single-Site Location. Passive SSL. Determining the Reflection Delay with the Cepstrum. MUSIC Cepstrum SSL. Earth Curvature. Skywave DF Errors. Ray Tracing. Accuracy Comparison of SSL and Triangulation for Ionospherically Propagated Signals. Concluding Remarks. ;