Modern Radar Systems

Course 258

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Summary

Radar sensing has long been an indispensable tool for military surveillance and civil remote sensing. The ability to function day and night, in all weathers and to cover wide areas rapidly means that radar has found wide application from short ranges of a few hundred meters to space based operations. In recent years, radar systems have gone through something of a revolution with the advent of high speed, wide dynamic rage A to D converters and corresponding digital processors. This has led to array based antennas, ultra high range resolution and imaging, advanced adaptive processing for enhanced detection, tracking and target classification. Indeed, radar sensing is continually being extended and new areas such as cognitive sensing and sensing for autonomous applications are set to bring about a further revolution. This course begins by introducing the basic, underpinning concepts that are the foundation of all radar systems. It then builds on this to introduce contemporary methods for moving target detection, array antennas for radar, tracking, high-resolution techniques, imaging and target classification. Throughout the course, real life examples are used to illustrate the key points and ensure that concepts are presented in a realistic and meaningful way.

Learning objectives

Upon completing the course you will be able to:

  • Define the key concepts underpinning modern radar design
  • Demonstrate the radar equation and its application
  • Derive mathematics in relation to radar engineering design
  • Examine the operation and trade-offs of modern radar design
  • Identify and explain engineering problems in relation to radar design
  • Understand the operation of phased array antenna, array technology and techniques for controlling E scan resources
  • Understand and compute radar system performance for MTI and tracking radar
  • Be familiar with the differences between monostatic and bistatic radar, the concepts and design of passive bistatic radar air target detection
  • Examine how high resolution is generated in radar, radar imaging (SAR and ISAR)
  • Understand the processes used in target classification
  • Have an appreciation of future trends in radar, radar signal processing and new areas of application

Target Audience

Radar engineers, radar system architects, test engineers, product engineers and technicians. Technical managers who are working in radar related fields ad require exposure to RF system technology.

Outline

Day One

Radar Basics
 • a little history • radar parameters • ranging • range resolution • radar equation
Radar Performance Prediction
 • noise • clutter and clutter modeling • targets and target modeling • radar performance prediction

Day Two

Radar sub-systems
 • transmitters • antennas • receivers • displays
Waveforms
 • waveform types • matched filtering • pulse compression • ambiguity function analysis • linear frequency modulation • phase modulation • ultra low side lobe design

Day Three

Radar Modes
 • FM radar • air traffic management radar • Doppler • MTI • DPCA • STAP • parameter estimation • monopulse • alpha-beta filtering • Kalman filtering • array antennas • array technology • array radar resource management

Day Four

Bi static and multistatic radar
 • bistatic radar concept • design parameters • target modeling • clutter modeling • bistatic ambiguity function • multistatic radar • passive bistatic radar • direct signal interference removal • spectrum efficiency

Day Five

High Resolution Radar and Imaging
 • high resolution techniques • waveform agility • stretch processing • synthetic aperture radar (SAR) • inverse synthetic aperture radar (ISAR) • 3-D interferrometric SAR (InSAR) • imaging radar systems • impact of far-out phase noise on receivers and transmitters
Target Classification
 • classification definitions • performance metrics • classification process • target signatures • classification methods • classification performance • quadrature mixing and DC offset • transmitter architectures : spectrum mask, ACI, EVM
Stealth/Counterstealth and Future Trends
 • passive stealth techniques • active stealth techniques • low frequency radar • MIMO radar • ultra wide band radar • cognition and radar sensing