| 摘要 |
At least two non-collocated transmitters (116) transmit (1604) a synchronization signal such that it includes at least three predetermined tone frequencies. A receiver (122) receives (1606) the synchronization signal, and separates (1608) the synchronization signal into a plurality of segments (404). The receiver then calculates (1610) segment Fourier transform values corresponding to the at least three predetermined tone frequencies, for ones of the plurality of segments, thereby creating a set of segment Fourier transform values. The receiver also computes a set of segment time-of-arrival (TOA) values corresponding to the set of segment Fourier transform values. In addition, the receiver determines (1612) a set of segment weights from the set of segment Fourier transform values, and estimates (1616) the TOA of the synchronization signal from the set of segment TOA values and the set of segment weights.
|
