IDEAS home Printed from https://ideas.repec.org/a/taf/tewaxx/v34y2020i3p375-389.html
   My bibliography  Save this article

Velocity ambiguity resolution for wideband automotive millimeter wave radar: a carrier frequency multiplexing framework

Author

Listed:
  • Cheng Zhang
  • Mengde Cao
  • Yang Li
  • Yuqin Gong
  • Yongming Huang

Abstract

Wideband millimeter-wave (mmWave) radars perform sensing for automotive applications. For the velocity ambiguity in automotive mmWave radars, a resolution scheme is proposed via exploiting carrier frequency multiplexing. Compared with conventional auxiliary signal-based schemes, the proposed scheme only needs one set of main frequency modulated continuous wave (FMCW) signal. After collecting a part of the main signal as the sub-signal, the ambiguity is resolved via using the carrier-frequency difference between these two signals, resulting in higher time utilization efficiency. Meanwhile, the target information from the main signal is utilized to calculate the discrete Fourier transform (DFT) coefficient and a two-dimensional DFT is performed on the sub-signal for the ambiguity resolution. Thus, the procedures including fast Fourier transform (FFT), detection and estimation for the auxiliary signal in conventional schemes are avoided, which reduces the computational complexity. Simulations verify the effectiveness of the proposed scheme.

Suggested Citation

  • Cheng Zhang & Mengde Cao & Yang Li & Yuqin Gong & Yongming Huang, 2020. "Velocity ambiguity resolution for wideband automotive millimeter wave radar: a carrier frequency multiplexing framework," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 34(3), pages 375-389, February.
    • Handle: RePEc:taf:tewaxx:v:34:y:2020:i:3:p:375-389
    DOI: 10.1080/09205071.2020.1713226
    as

    Download full text from publisher

    File URL: http://hdl.handle.net/10.1080/09205071.2020.1713226
    Download Restriction: Access to full text is restricted to subscribers.
    File URL: https://libkey.io/10.1080/09205071.2020.1713226?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:taf:tewaxx:v:34:y:2020:i:3:p:375-389. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Chris Longhurst (email available below). General contact details of provider: http://www.tandfonline.com/tewa .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.