To obtain a wireless communication system that has a wireless transmission device, which is provided with a highly-efficient amplifier and facilitates its configuration, and a wireless receiver.
The wireless transmission device 10 is provided with a serial-parallel converter 11, a constant envelope modulator 12 and a D/A converter 13 which modulate a digital signal of each channel to a constant envelope modulated signal respectively so as to convert the digital signal into an analog signal, a frequency converter 14 for converting the signal of each channel into a different carrier frequency, the amplifier 15 for amplifying the constant envelope modulated signal of each channel, and an antenna 19 that wirelessly transmits the amplified signal into space for each channel. The wireless receiver 20 is provided with an antenna 21, a demultiplexer 22 for demultiplexing a received signal, a frequency converter 23 and an A/D converter 24 which convert the signal of each channel into a baseband frequency so as to convert the signal into the digital signal, a constant envelope demodulator 25 for demodulating the constant envelop demodulated signal of each channel, and a parallel-serial converter 26 that restores the original input digital signal from the digital signal demodulated for each channel.
TAKAGI SUNAO
NAKASE HIROYUKI
KAMEDA TAKU
OSHIMA SHOICHI
FUJIMURA AKINORI
SOGABE YASUSHI
ISHIZU FUMIO
UNIV TOHOKU
| JP2002532949A | 2002-10-02 | |||
| JP2004289695A | 2004-10-14 | |||
| JP3346945B2 | 2002-11-18 | |||
| JPH11308129A | 1999-11-05 | |||
| JP2003152671A | 2003-05-23 | |||
| JP2006166371A | 2006-06-22 | |||
| JP2006166160A | 2006-06-22 |
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order