| 摘要 |
Disclosed is a receiver of a direct conversion receiving scheme in which a packet is transmitted or received while performing frequency hopping for each symbol and demodulation is started by carrier sensing at the beginning of the packet, which performs demodulation without hopping frequencies of LOs of receiving systems to reliably execute fast carrier sensing and hopping synchronization at the beginning of the packet and remove the DC offset jump. At a time of demodulation of a payload part, the frequencies of LOs of the receiving system are hopped to allow a transition of MIMO. Further, by concurrently using complex bandpass filters while fixing all the LOs at a center LO frequency, complete removal of the DC offset jump over the entire length of the packet and MIMO can be simultaneously implemented.
|
