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

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發送短信 : Short-delay multipath mitigation for indoor positioning applications