أرسل هذا في رسالة قصيرة: Optimal and sub-optimal training sequence design for two-dimensional maximum-likelihood channel estimator for single-carrier and multicarrier quasisynchronous CDMA systems

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