frequency shift
[/ˈfriːkwənsi ʃɪft/]
nounpl: frequency shifts
desvio de frequência
1. A change in the frequency of a wave, signal, or oscillation from its original value
The frequency shift observed in the radar signal indicated the movement of the aircraft.
O desvio de frequência observado no sinal do radar indicou o movimento da aeronave.
2. In physics, the apparent change in frequency of a wave due to relative motion between source and observer (Doppler effect)
The ambulance siren demonstrates a frequency shift as it approaches and moves away from the listener.
A sirene da ambulância demonstra um desvio de frequência conforme se aproxima e se afasta do ouvinte.
3. In telecommunications, the deliberate change of a signal's frequency for modulation or transmission purposes
Frequency shift keying is a modulation technique used in digital communications.
A modulação por desvio de frequência é uma técnica usada em comunicações digitais.
This is a technical term primarily used in physics, engineering, telecommunications, and astronomy in both English-speaking countries and Brazil. It gained cultural prominence with the understanding of the Doppler effect and is fundamental to modern radio and wireless communication technologies. The term is equally understood and used in both Brazilian and Portuguese scientific communities.
Related Idioms & Phrases
frequency shift keying (FSK)
frequency shift phenomenon
observe a frequency shift
Look up more words on Fala2Me
The free English-Portuguese dictionary with real Brazilian accents, NYC slang, conjugator and more
Open Fala2Me →