CONTENTS xvii 



8-21 The IF Amplifier Control Characteristic 427 



8-22 The Angle Measurement Stabilization Problem .... 429 



8-23 AI Radar Angle Stabilization 433 



8-24 Aircraft Motions 433 



8-25 Stabilization Requirements 439 



8-26 Search Pattern Stabilization 440 



8-27 Search Stabilization Equations 440 



8-28 Static and Dynamic Control Loop Errors 442 



8-29 Search Loop Mechanization 448 



8-30 Stabilization During Track 452 



8-31 Possible System Configurations 453 



8-32 Accuracy Requirements on the Angle Track Stabilization 



Loop 457 



8-33 Dynamic Stability Requirements on Angle Track Stabiliza- 

 tion 464 



8-34 Stabilization Loop Mechanization 468 



9 AUTOMATIC TRACKING CIRCUITS 



9-1 General Problems of Automatic Tracking 471 



9-2 Automatic Angle Tracking 474 



9-3 External Inputs: Undesired and Desired 475 



9-4 Requirements in Angle Tracking Accuracy 479 



9-5 Angle Tracking System Organization 480 



9-6 Tracking Loop Design 485 



9-7 Angle Tracking Loop Rate Errors 486 



9-8 Angle Tracking Loop Position Errors 489 



9-9 Angle Tracking Loop Mechanization 492 



9-10 Introduction to Range and Velocity Tracking 498 



9-11 x'\utomatic Range Tracking 498 



9-12 Servo System Transfer Function Relationship to Input Time 



Function for a Range Tracking System 502 



9-13 Range Tracking Design Example 505 



9-14 Practical Design Considerations 508 



10 ANTENNAS AND RF COMPONENTS 



10-1 Antennas: Introduction to Radar Antennas 512 



10-2 Some Fundamental Concepts Useful in the Development of 



Radar Antenna Requirements 513 



10-3 The Paraboloidal Reflector as a Radar Tracking Antenna . 515 



10-4 System Requirements for Radar Antennas 518 



10-5 Pattern Simulation as a Link Between System Requirements 



and Antenna Characteristics 520 



