Frequency diverse array with random logarithmically increasing frequency offset

Gaojian Huang, Yuan Ding, Shan Ouyang, Vincent F. Fusco

Research output: Contribution to journalArticle

Abstract

The frequency diverse arrays (FDAs) have been extensively investigated since it can provide a unique angle‐range‐dependent beampattern. This range‐dependent characteristic can suppress the range ambiguous clutters, leading to many novel potential Radar applications. Two issues, however, exist in conventional FDA (CFDA) beampatterns, that is, range‐angle coupling and range periodicity. Therefore, for a CFDA Radar, target range information cannot be obtained directly from the beampattern peaks and target ambiguity occurs in the range domain. In this work, a new frequency diverse array (FDA) transmitter architecture with random logarithmically increasing frequency offset (log‐RFDA) is presented. It is shown that the proposed strategy provides a nonperiodic thumbtack‐like beampattern, eliminating the ambiguity in range domain, suffered in the CFDA Radar. Furthermore, reduced side lobe and higher detection resolution can be achieved, compared with the previously reported log‐FDA.
Original languageEnglish
Pages (from-to)2554-2561
Number of pages8
JournalMicrowave and Optical Technology Letters
Volume62
Issue number7
Early online date24 Feb 2020
DOIs
Publication statusPublished - Jul 2020

Keywords

  • frequency diverse arrays
  • higher detection resolution
  • nonperiodic thumbtack-like beampattern
  • random logarithmically increasing frequency offset

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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