Introduction Review of Radar Principles Tracking Radars and the Evolution of Monopulse A “Baseline” Monopulse Radar Advantages and Disadvantages of Monopulse Nonradar Uses of Monopulse Terminology, Definitions, and Notation The Monopulse Output as a Complex Ratio Components Used in Monopulse Antenna Mounts, Antennas, Feeds, Devices for Forming Sums and Differences, Receivers Amplitude-Comparison and Phase-Comparison Classification Definitions and Examples Phase Fronts, Phase Centers, and Related Concepts Distinguishing Between Phase and Amplitude Comparison Monopulse Distinction Based on Relative Phase of Illumination Functions Distinction Based on Sum and Difference Patterns Apparent Conversion of One Class to the Other Optimum Feeds for Space-Fed Amplitude-Comparison Monopulse Antennas Monopulse in Array Antennas Monopulse Processors Functions and Properties of Monopulse Processors Range Gating Angular Coordinates for Monopulse Calibration Exact Monopulse Processor Processor Using I and Q.