skos:altLabel | - trail
- Doppler
- effect
- Doppler shifted
- doppler
- radio science
- Doppler Effect
- Doppler Radio
- Doppler broadening
- Doppler curve
- Doppler displacement
- Doppler effect principle
- Doppler effect#Inverse Doppler effect
- Doppler effect#Satellite navigation
- Doppler equations
- Doppler frequency shift
- Doppler frequency shifting
- Doppler histories
- Doppler machines
- Doppler measurements
- Doppler motion
- Doppler processing
- Doppler radio
- Doppler ranging
- Doppler shift
- Doppler shifting
- Doppler shifts
- Doppler technique
- Doppler techniques
- Doppler test
- Doppler tracking system
- Doppler velocities
- Doppler-beat interference
- Doppler-displaced
- Doppler-effect
- Doppler-shifted
- Doppler-shifted echoes
- The Doppler shift principle
- blue-shifted
- blueshifted
- doppler data
- doppler effect
- doppler effect correction
- doppler shift
- doppler shift principle
- doppler shifting
- doppler shifts
- doppler techniques
- doppler-effect
- dopplered down
- perceive a change in frequency
- radial velocity variation
- redshifted
- sound of passing cars
- velocities relative
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