WIRELESS SYSTEM, WIRELESS TRANSMITTER, WIRELESS RECEIVER AND WIRELESS COMMUNICATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a wireless system having a small and simple block configuration which cancels a phase noise by using a transmission local signal as a reception local signal. SOLUTION: A wireless transmitter 101 transmits a multiplexed signal in which an information signal having no sub-carrier arranged on the center frequency of a carrier wave and the transmission local signal for frequency conversion are multiplexed as a carrier wave. In a wireless receiver 151, a signal distributor 154 separates and extracts the information signal and the transmission local signal from the multiplexed signal transmitted from the wireless transmitter 101, and distributes the separated signals. A local signal extracting filter 158 uses the extracted transmission local signal as the reception local signal for frequency conversion. On the other hand, an information signal branch 155 extracts the information signal distributed in the signal distributor 154. Further, a reception frequency converter 156 applies frequency conversion to the extracted information signal based on the reception local signal. COPYRIGHT: (C)2007,JPO&INPIT