envelope detection
[/ˈɛnvəloʊp dɪˈtɛkʃən/]
noun
detecção de envoltória
1. A signal processing technique used to extract the envelope or outline of a modulated signal by removing the high-frequency carrier wave
Envelope detection is commonly used in AM radio receivers to recover the original audio signal from the modulated carrier.
A detecção de envoltória é comumente usada em receptores de rádio AM para recuperar o sinal de áudio original da portadora modulada.
2. The process of demodulating a signal that has been amplitude-modulated to extract the original information
The circuit performs envelope detection using a diode and capacitor to isolate the modulating signal.
O circuito realiza detecção de envoltória usando um diodo e capacitor para isolar o sinal modulante.
This is a specialized technical term primarily used in electrical engineering, telecommunications, and signal processing fields. It is not commonly used in everyday conversation in either Brazil or the USA, and remains standardized across both regions due to its technical nature. The term is essential in educational curricula for engineering students in both countries.
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