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Principles and Applications

ATI's Fundamentals of Synthetic Aperture Radar course


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Summary:

Technical Training Short On Site Course Quote

    This two-day course provides a survey of orbital synthetic aperture radar (SAR) systems, past, present, and future. Typical applications are illustrated. Fundamental constraints and trade-offs in system design and performance are introduced. Examples and case studies are used, selected by the Instructor, which, with advance notice, may be augmented by request from prospective students.

Tuition:

Instructor:

Mr. Richard Carande. From 1986 to 1995 Mr. Carande was a group leader for a SAR processor development group at the Jet Propulsion Laboratory (Pasadena California). There he was involved in developing an operational SAR processor for the JPL/NASA’s three-frequency, fully polarimetric AIRSAR system. Mr. Carande also worked as a System Engineer for the Alaska SAR Processor while at JPL, and performed research in the area of SAR Along-Track Interferometry. Before starting at JPL, Mr. Carande was employed by a technology company in California where he developed optical and digital SAR processors for internal research applications. Mr. Carande has a BS & MS in Physics from Case Western Reserve University.

Contact this instructor (please mention course name in the subject line)

What you will learn:

  • Basic radar concepts and principles
  • SAR imaging and approaches to SAR processing
  • Basic SAR system engineering and design tradeoffs
  • Survey of existing SAR systems
  • Coherent and Non-Coherent SAR Exploitation including basic interferometry

Course Outline:

  1. Fundamentals of Radar: This portion of the course will provide a background in radar fundamentals that are necessary for the understanding and appreciation of synthetic aperture radar (SAR) and products derived from it. We will first review the history of radar technology and applications, and introduce some fundamental elements common to all radar systems. The student will learn how basic ranging radar systems operate, why a chirp pulse is commonly used, the Radar Range Equation and radar backscattering. We will also discuss common (and uncommon) radar frequencies (wavelengths) and their unique characteristics, and why one frequency might be preferred over another. A high-level description of radar polarization will also be presented.

  2. SAR Imaging: An overview of how SAR systems operate will be introduced. We will discuss airborne systems and spaceborne systems and describe unique considerations for each. Stripmap, spotlight and scanSAR operating modes will be presented. The advantages of each mode will be described. A description of SAR image characteristics including fore-shortening, layover and shadow will be shown. Range and azimuth ambiguities will be presented and techniques for mitigating them explained. Noise sources will be presented. Equations that control system performance will be presented including resolution, ambiguity levels, and sensitivity. Approaches to SAR image formation will be described including optical image formation and digital image formation. Algorithms such as polar formatting, seismic migration, range-Doppler and time-domain algorithms will be discussed.

  3. Existing and future SAR systems: We will describe the suite of SAR systems currently operating. These will include all of the commercial spaceborne SAR systems as well as common airborne systems. Key features and advantages of each system will be described. A description of upcoming SAR missions will be provided.

  4. SAR Image Exploitation: In this section of the class a number of SAR exploitation algorithms will be presented. The techniques described in this session rely on interpretation of detected images and are applied to both defense and scientific applications. A high-level description of polarimetric SAR will be presented and the unique capabilities it brings for new applications. (More polarimetry detail can be found in the ATI Advanced SAR course.)

  5. Coherent SAR Exploitation: The coherent nature of SAR imagery will be described and several ways to exploit this unique characteristic will be presented. We will discuss the “importance of phase,” and show how this leads to incredible sensitivities. Coherent change detection will be described as well as basic interferometric applications for measuring elevation or centimeter-level ground motion. (More detail on interferometry can be found in the ATI Advanced SAR course.)


Tuition:

    Tuition for this two-day course is $1290 per person at one of our scheduled public courses. Onsite pricing is available. Please call us at 410-956-8805 or send an email to ati@aticourses.com.

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