×

Method and device for determining separation and relative speed of a distant object

  • US 20030179128A1
  • Filed: 03/04/2003
  • Published: 09/25/2003
  • Est. Priority Date: 10/10/2000
  • Status: Active Grant
First Claim
Patent Images

1. A method for determining the distance (R) and relative speed (v) of at least one object remote from an observation point with the aid of electromagnetic signals, which are emitted from the observation point and whose frequency is shifted over a modulation range (fSweep) during a measuring interval, and which are in the form of signal sections (A, B) that are emitted alternately and exhibit a frequency spacing (fShift) from one another and whose echo signals are detected after reflection at the object, the phase difference (Δ

  • ψ

    ) of the echo signals originating from the respective signal sections (A, B) being determined, characterized in that the signal sections (A, B) are emitted shifted in steps over the modulation range (fSweep) by in each case one frequency step (fIncr), and in that at least one sample is taken for each signal section to determine the phase difference (Δ

    ψ

    ).

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×