| 摘要 |
PURPOSE:To reduce the interference due to narrow band disturbance and multipass phasing in a SS communication equipment. CONSTITUTION:In a SS transmitter, a PN code generator 1 and a mixer 3 execute spectrum-spreading of information data, and a wave shaping section 2 makes spectrum flat, then the data is transmitted. In a SS receiver, distributor 10 distributes a SS receiving signal to n+1 and BPF 11 divides the SS receiving signal to n bands. Distributed remaining signals are weighted by weighting section 12 to obtain n weight signals. The level of each BPF output is controlled by a control signal corresponding to the difference between a weighted signal and each BPF signal, signals treated for their respective level controls are synthesized by synthesizer 15, and the synthesized signals are restored to the SS signal by the wave shaping section 1. |
