發送短信 : Optimum DOA algorithms for narrowband and wideband applications

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