Range and angle estimation and tracking
Graham Brooker · 2021
Chapter Contents: 13.1 Introduction 13.2 Range estimation and tracking 13.2.1 Range gating 13.3 Principles of a split-gate tracker 13.3.1 Range transfer function 13.3.2 Noise on split-gate trackers 13.4 Range tracking loop implementation 13.4.1 The α–β filter 13.4.2 The α–β–g filter 13.4.3 The Kalman filter 13.4.4 Other fixed gain tracking filters 13.5 Ultrasonic range tracker example 13.6 Tracking noise after filtering 13.7 Tracking lag for an accelerating target 13.8 Worked example: range tracker bandwidth optimisation 13.9 Range tracking systems 13.9.1 Lidar speed trap 13.10 Seduction jamming 13.11 Angle measurement 13.11.1 Amplitude thresholding 13.11.2 Proximity detector example 13.12 Angle tracking principles 13.12.1 Scanning across the target 13.12.2 Null steering 13.13 Lobe switching (sequential lobing) 13.13.1 Main disadvantages of lobe switching 13.14 Conical scan 13.14.1 The squint angle optimisation process 13.14.2 Measuring the conscan antenna transfer function 13.14.3 Application 13.14.4 Main disadvantages 13.14.5 Other considerations 13.15 Infrared target trackers 13.16 Amplitude comparison monopulse 13.16.1 Antenna patterns 13.16.2 Generation of error signals for a microwave radar 13.16.3 Ultrasound sonar beacon tracker example 13.16.4 Classical monopulse radar 13.16.5 Monopulse tracking using phased array 13.17 Comparison between conscan and monopulse 13.18 Angle tracking loops 13.18.1 Motor control 13.18.2 Tracking error 13.19 Angle estimation and tracking applications 13.19.1 Instrument landing system 13.20 Worked example: combined acoustic and infrared tracker 13.20.1 Operational principles of prototype 13.20.2 Theoretical performance 13.20.3 Tracker implementation 13.20.4 Construction 13.20.5 Control algorithms 13.21 Angle track jamming 13.22 Triangulation and trilateration 13.22.1 Loran-C References