| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for solving collision through the use of an acquisition system and to provide a device to perform this method. SOLUTION: The collision recovery signal processing unit 48 of this invention has an antenna 50 having branches, time spatial filter means 52, 54 that are respectively configured to estimate a signal received by the antenna through the reception of different sequences of a training type symbol TLS so as to provide corresponding object signals SC1-SCM, and a signal selector 56 that is configured to select one signal or more from the object signals in compliance with a prescribed criterion. The prescribed criterion means a distance of the object signal from a finite alphabet or a mean square error among the object signals. The time spatial filter means 52, 54 perform an algorithm or a semi- blind algorithm on the basis of the same training.</p> |
