4.3 Pulse Compression in Radar Systems

Instructor: Dr. Marvin Cohen - GTRI

Thursday April 25, 1:30 p.m. to 5:30 p.m.

Abstract

The principles, motivations, and terminology related to radar pulse compression are presented with an emphasis on obtaining a fundamental understanding of the concepts and techniques involved. The lecture continues with an in-depth discussion of specific pulse compression techniques based on frequency, phase, and hybrid modulation schemes. Frequency modulation techniques discussed include linear and non-linear frequency modulation, stretch, and stepped-frequency waveforms. Particular phase modulation techniques reviewed in the course include Barker, MPS, pseudorandom, Golay, Welti, Frank, and P4 codes, and the 'concatenation' of these codes for the construction of long code-filter designs. The course closes with a discussion of innovative mismatch filtering techniques and the analysis and evaluation of pulse compression schemes based on application of the radar ambiguity function. Dr. Cohen seeks to both inform and entertain his students in an atmosphere conducive to learning. Extensive references and a PDF file of the entire tutorial are provided to ensure that the student is well-equipped to translate attendance at the tutorial into an ability to apply the material on the job.

Bio

Dr. Marvin Cohen, a Fellow of both the IEEE and The Georgia Tech Research Institute, holds a Ph. D. in mathematics and has been active in the development and teaching of radar pulse compression for two decades. He is a Principal Research Scientist at GTRI, Head of its Target Identification Program Office, and an Adjunct Professor in Electrical Engineering at the Georgia Institute of Technology. He also is CEO of his firm, IRTA/MCA, which supplies expert consulting services to government, industry, and academia, in the areas of target identification, identification fusion, pulse compression, advanced radar concepts and developments, and the conduct of large, complex technical programs. Dr. Cohen is the author of well over one hundred professional publications, is co-author, with Nathanson and Riley, of the text, Radar Design Principles, 2nd Edition, published by McGraw-Hill in 1991 and re-released, with minor modification, by SciTech in 1998. He has also published five chapters in four graduate-level / reference texts, and teaches in five GIT short courses.

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