| 释义 |
de·tec·tion
\də̇ˈtekshən, dēˈ-\ noun
(-s)
Etymology: Middle English deteccyon, from Late Latin detection-, detectio act of revealing, from Latin detectus (past participle of detegere + -ion-, -io -ion
1. : the act of detecting : the laying open of what was concealed or hidden or of what tends to elude observation : discovery
< detection of a thief >
< the detection of fraud >
< techniques of crime detection >
2. radio
a. : determination of the presence of a signal
b. : rectification
c. : extraction of the intelligence from a signal
d. : conversion of a modulated wave or current into the original modulating wave or current — called also demodulation |