Vehicle collision warning and avoidance system using real-time FFT

Paul G. Flikkema, Sandra G. Johnson

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


This paper describes a radar system for highway use that is intended to improve both safety and operating efficiency. This system is designed for deployment in both mobile and fixed-location applications, and combines use of advanced millimeter-wave radar technology with low-cost integrated DSP. We employ frequency-modulated continuous-wave (FMCW) techniques, with resulting advantages in power efficiency and cost. A key requirement for real-time operation is high-speed computation of the FFT and power spectrum of the homodyned received signal. This is accomplished by using low-cost programmable DSP technology employing parallel hardware units in a pipelined architecture. We describe the DSP system design and processing algorithm performance.

Original languageEnglish (US)
Pages (from-to)1820-1824
Number of pages5
JournalIEEE Vehicular Technology Conference
StatePublished - 1996
EventProceedings of the 1996 IEEE 46th Vehicular Technology Conference. Part 1 (of 3) - Atlanta, GA, USA
Duration: Apr 28 1996May 1 1996

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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