Zigbee所使用的無線射頻調變技術為?
A、 直接序列展頻 (Direct-Sequence Spread Spectrum, DSSS);
B、跳頻展頻 (Frequency-Hopping Spread Spectrum, FHSS);
C、正交分頻多工 (Orthogonal Frequency Division Multiplexing, OFDM);
D、以上皆非
发布时间:2025-03-29 09:32:36
A、 直接序列展頻 (Direct-Sequence Spread Spectrum, DSSS);
B、跳頻展頻 (Frequency-Hopping Spread Spectrum, FHSS);
C、正交分頻多工 (Orthogonal Frequency Division Multiplexing, OFDM);
D、以上皆非