| 摘要 |
<p>A method ( 200 ) and system ( 300 ) for detecting a received signal, such as a UWB signal, select a first band ( 210 ) and search ( 230 ) for an autocorrelation peak in the signal in the first band. The autocorrelation peak is compared to a threshold ( 250 ), and it is determined that a signal is detected when the autocorrelation peak exceeds the threshold. In response to detecting the signal, the system ( 300 ) and method ( 200 ) select a second band ( 260 ), search ( 265 ) for an autocorrelation peak in the signal in the second band, and determine a coarse frequency error ( 275 ) in the signal from the autocorrelation peak in the second band. The coarse frequency error in the signal is corrected and a frame synchronization sequence of the signal is detected to complete the synchronization.</p> |
