發送短信

數:

提供者:

CAPTCHA:

 _    _     _____     ______    ______    _____   
| |  | ||  |  ___||  /_   _//  /_   _//  / ____|| 
| |/\| ||  | ||__    `-| |,-    -| ||-  / //---`' 
|  /\  ||  | ||__      | ||     _| ||_  \ \\___   
|_// \_||  |_____||    |_||    /_____//  \_____|| 
`-`   `-`  `-----`     `-`'    `-----`    `----`

Please enter what you see:

發送短信 : Frequency domain MDPSK based non-equalization OFDM for coherent free-space optical communication over modified rician turbulence channel