Ultra wideband communication system, transmission device, reception device, and relay device used for the same

• Main Author: YASUE TOSHIHIKO,SHIOZAKI TORU,FUSE MASARU
• Format: Patent
• Language: English
• Published: 09.05.2007
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION

The ultra wideband communication system comprises: a pulse generation section for generating a pulse signal based on a data signal; a first optical phase modulation section for performing optical phase modulation in accordance with the pulse signal, and outputting a resultant signal as an optical pulse signal; an optical transmission path for propagating the optical pulse signal; a template generation section for outputting a template signal; a second optical phase modulation section for performing optical phase modulation on the optical pulse signal in accordance with the template signal, and outputting a resultant signal as an optical phase demodulation signal; an optical phase intensity conversion section for converting information about an optical phase of the optical phase demodulation signal into information about an optical intensity thereof, and outputting a resultant signal as an optical correlation signal; an optical-electrical conversion section for performing optical-electrical conversion on the optical correlation signal, and outputting a resultant signal as a correlation signal; and a signal identification section for identifying the correlation signal outputted from the optical-electrical conversion section, thereby detecting the data signal.