發送短信 : Simulation of targets and backgrounds in sonar/radar systems

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