TRANSMITTER AND COMMUNICATION SYSTEM EQUIPPED WITH THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a transmitter for suppressing power leakage to an adjoining channel and for reducing a peak power relative to an average power. SOLUTION: In a transmitter 1, band pass filters BPF1-BPF4 divides transmission spectrumΣδ(t-nTs)aninto division transmission spectrums DVS1-DVS4 by transmission functions H1(ω)-H4(ω) respectively. The division transmission spectrums DVS1-DVS4 are subjected to convolution to limit a band. Multipliers MP1-MP4 multiply the division transmission spectrums DVS1-DVS4 supplied from the band pass filters BPF1-BPF4 by ejω1tto ejω4tfor frequency conversion. An adder SUM1 arranges in series division transmission spectrums DVS1'-DVS4' each of which frequency has been converted for transmission. COPYRIGHT: (C)2011,JPO&INPIT