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Search and Application of Pulse Compression Codes with Zero or Small Sidelobe Characteristics

Research Project

Project/Area Number 18K04177
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 21030:Measurement engineering-related
Research InstitutionNippon Institute of Technology

Principal Investigator

Takase Hiroshi  日本工業大学, 基幹工学部, 教授 (80306266)

Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsパルス圧縮 / レーダ / 符号 / サイドローブ / FPGA
Outline of Final Research Achievements

In this study, we investigated a fast code search method to find proposed pulse compression codes with zero or small sidelobe. GPGPUs, FPGAs, and optimization methods were used to achieve high-speed computation. As a result, we were able to search for codes with code lengths that could not be searched so far, and to find proposed codes with smaller sidelobe than conventional codes. Computer simulations were performed to evaluate the characteristics of these codes, and their effectiveness was confirmed.

Academic Significance and Societal Importance of the Research Achievements

本研究で提案する幅広パルス圧縮符号は,従来符号に比べ符号長毎の符号の数が多いという特徴があることから,干渉がある状況での符号の切り替えなどによる対干渉性能にも優れていると考えられる.このような特徴を有する提案符号を探索,発見し,その特性を明らかにすることでレーダの探知性能向上が期待できる.そして,レーダを用いた計測によって,航空管制,環境計測,宇宙科学,気象学など多くの研究分野での派生的な効果が期待される.本研究では,レーダへの適用を想定しているが,符号自体は無線通信技術やセキュリティ技術などスペクトラム拡散技術の符号であることから,他分野における様々な応用システムでの性能向上も期待できる.

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (3 results)

All 2022 2019

All Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] 複数のFPGAを用いた幅広2値符号の探索2022

    • Author(s)
      木村圭吾,神林 龍,高瀬浩史
    • Organizer
      令和4年電気学会全国大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 分散遺伝的アルゴリズムを用いた幅広2値符号の探索2019

    • Author(s)
      橋本尚樹,高瀬浩史,神力正宣
    • Organizer
      平成31年電気学会電子・情報・システム部門大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Search of Binary Codes Compressed to Several Sub-pulses2019

    • Author(s)
      Hiroshi Takase, Masanori Shinriki
    • Organizer
      IEEE International Conference on Microwave, Communication, Antennas & Electronic Systems 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2023-01-30  

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