The regenerative data generation method and super broadband communication system null for the receiver and super broadband communication for super broadband communication

摘要

PPROBLEM TO BE SOLVED: To provide an ultra wideband communications technology, namely, a receiver for ultra wideband communications, method of generating reproduction data for ultra wideband communications, and ultra wideband communications system, wherein a modulation and demodulation technique of constantly transmitting a plurality of carriers in a wide frequency bandwidth is employed for a baseband communication using an ultra wideband and an automatic gain control amplifier having a wide dynamic range is set after a despread demodulation operation is performed, so as to reduce negative influence to other radio waves. PSOLUTION: They are provided with: a low-gain amplifier for reception which performs low-gain amplification on a received despread demodulation signal; a despread demodulator for demodulating the signal on which the low-gain amplification has been performed; a high-pass filter which blocks only an information signal band before spreading at an input terminal of the despread demodulator; a low-pass filter which passes only an information signal band before spreading at an output terminal of the despread demodulator; an automatic gain control amplifier which has a wide dynamic range and amplifies a signal demodulated by the despread demodulator to a signal having a constant amplitude level; and a determiner for determining the amplified signal to reproduce data. PCOPYRIGHT: (C)2008,JPO&INPIT