[dee-moj-uh-ley-shuh
n] 
[di-tek-shuhn] | 1. | the act of detecting. |
| 2. | the fact of being detected. |
| 3. | discovery, as of error or crime: chance detection of smuggling. |
| 4. | Telecommunications.
|
| de·mod·u·la·tion (dē-mŏj'ə-lā'shən) n. The conversion of a modulated carrier wave into a current equivalent to the original signal. Also called detection. |
demodulation communications
To recover the signal from the carrier. For example, in a radio broadcast using amplitude modulation the audio signal is transmitted as the mean amplitude of a radio-frequency carrier so demodulation requires a circuit which measures the amplitude and filters out the carrier. There are many other kinds of modulation and corresponding demodulation.
(1998-07-29)