Polyphase-coded FM (PCFM) radar waveforms, part I: implementation

Polyphase radar codes promise enhanced performance and flexibility due to greater design freedom. While the search for better codes continues, the implementation issues of transmitter bandlimiting and nonlinear distortion have precluded their widespread use in high-power systems. This paper introduc...

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Bibliographic Details
Published inIEEE transactions on aerospace and electronic systems Vol. 50; no. 3; pp. 2218 - 2229
Main Authors Blunt, Shannon D., Cook, Matthew, Jakabosky, John, De Graaf, Jean, Perrins, Erik
Format Journal Article
LanguageEnglish
Published New York IEEE 01.07.2014
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Encoding
Frequency modulation
Nonlinear distortion
Radar
Receivers
Transmitters
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Summary:Polyphase radar codes promise enhanced performance and flexibility due to greater design freedom. While the search for better codes continues, the implementation issues of transmitter bandlimiting and nonlinear distortion have precluded their widespread use in high-power systems. This paper introduces a modified continuous phase modulation implementation that converts an arbitrary polyphase code into a nonlinear frequency-modulated waveform that is constant envelope and spectrally well contained. Experimental results assess the receive sampling and pulse compression effects.
ISSN:0018-9251
1557-9603
DOI:10.1109/TAES.2014.130361