| 摘要 |
Relatively inexpensive transmitters may simultaneously send identifying signals to one or more receiving stations, which detect the signals from the remote transmitters, determine the time of arrival of the signals and decode the information (if any) contained in the signals, all without synchronization between the receiving stations and the transmitters or among the transmitters and all without a central system for polling the various remote transmitters. The system combines the signal information received from two or more receiving stations. |
