1. 
   Doppler frequency shift
   (from the article `radar`) ...echoes. The Doppler frequency shift is the basis for police radar guns. SAR and ISAR imaging radars make use of Doppler frequency to generate ... Radar can extract the Doppler frequency shift of the echo produced by a moving target by noting how much the frequency of th...
   Found op http://www.britannica.com/eb/a-z/d/67
   
   
2. 
   doppler shift
   <radiobiology> The amount of change in the observed frequency of a wave due to the Doppler effect, sometimes called the Doppler frequency. ... (09 Oct 1997) ...
   Found op http://www.mondofacto.com/facts/dictionary?doppler+shift
   
   
3. 
   Doppler shift
   (dop´ler) the magnitude of frequency change caused by the Doppler effect.
   Found op http://www.encyclo.co.uk/local/21001
   
   
4. 
   Doppler shift
   The change in position of spectral lines due to the Doppler effect; named after Christian Andreas Doppler (1803-1853). If an object is approaching, its light is compressed and any lines in its spectrum appear at shorter wavelengths than if the object were at rest (see blue shift). If the object is r...
   Found op http://www.daviddarling.info/encyclopedia/D/Doppler_shift.html
   
   
5. 
   Doppler shift
   Type: Term Pronunciation: dop′lĕr Definitions: 1. the magnitude of the frequency change in hertz when sound and observer are in relative motion away from or toward each other.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=81521
   
   
6. 
   Doppler Shift
   The apparent change in the frequency of a signal caused by the relative motion of the transmitter and receiver.
   Found op http://www.gmat.unsw.edu.au/snap/gps/glossary_d-h.htm
   
   
7. 
   Doppler-shift
   The apparent change in the frequency of a signal caused by the relative motion of the transmitter and receiver.
   Found op http://www.navtechgps.com/assets/1/7/NGPSAcronymsGlossary.pdf
   
   

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