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  _____    _    _    __   __    _____     ____    
 / ____|| | || | ||  \ \\/ //  |  ___||  |  _ \\  
/ //---`' | || | ||   \   //   | ||__    | |_| || 
\ \\___   | \\_/ ||   / . \\   | ||__    | .  //  
 \_____||  \____//   /_//\_\\  |_____||  |_|\_\\  
  `----`    `---`    `-`  --`  `-----`   `-` --`

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發送短信 : Code design for spectral separation in time hopping multiple access communication systems