Distance estimation using discretized frequency synthesis of ultrasound signals

Sangwook Park, Dae Eun Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


In this paper, we suggest a method for discretized frequency modulations of ultrasonic signals. A continuous sweep of frequency modulation signals can be modelled with fine levels of discretization. If the ultrasound signals are modulated with monotonically decreasing frequencies, then the cross-correlation between an emitted signal and received signal can be used to identify the distance of multiple target objects. For the discretized frequency synthesis, CF ultrasounds with different frequencies are serially ordered. The auto-correlation test with the signal shows effective results for distance estimation. The discretized frequency syntheses have better distance resolution than CF ultrasound signals and the resolution depends on the number of the combined ultrasound frequencies.

Original languageEnglish
Pages (from-to)499-504
Number of pages6
JournalJournal of Institute of Control, Robotics and Systems
Issue number5
Publication statusPublished - 2011 May

All Science Journal Classification (ASJC) codes

  • Software
  • Control and Systems Engineering
  • Applied Mathematics


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