detection

noun

1. the act of detecting.
2. the fact of being detected.
3. discovery, as of error or crime: chance detection of smuggling.
4. Telecommunications.
   1. rectification of alternating signal currents in a radio receiver.
   2. Also called demodulation.the conversion of an alternating, modulated carrier wave or current into a direct, pulsating current equivalent to the transmitted information-bearing signal.

noun

1. the act of discovering or the fact of being discovereddetection of crime
2. the act or process of extracting information, esp at audio or video frequencies, from an electromagnetic waveSee also demodulation