發送短信 : Differential TDMA impulse radio systems using delay-sum scheme in UWB channel

             ___     _    _     _____     _____   
  ____      / _ \\  | |  | ||  |  ___||  |__  //  
 |    \\   | / \ || | |/\| ||  | ||__      / //   
 | [] ||   | \_/ || |  /\  ||  | ||__     / //__  
 |  __//    \___//  |_// \_||  |_____||  /_____|| 
 |_|`-`     `---`   `-`   `-`  `-----`   `-----`  
 `-`