| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable easy detection of a plurality of detection-object signals in the same frequency band. <P>SOLUTION: A device includes: a detection-object candidate selection part for selecting a specific detection-object signal from among plural candidates for a detection-object signal; a candidate signal-use calculation part for calculating a cyclic autocorrelation function (CAF) at a center coordinate specified by (α,ν) of a specific detection-object signal; a common region-use calculation part for calculating a CAF at each of (L-1)-piece of coordinates belonging to a common region commonly used for different detection-object signals; a tested-statistic calculation part for calculating a tested statistic of a specific detection-object signal; and a signal determination part for determining presence/absence of a specific detection-object signal in accordance with a result of comparison between the tested statistic and a threshold. Further, the tested-statistic calculation part uses a CAF at each of the (L-1)-piece of coordinates belonging to the common region as CAFs at the (L-1)-piece of coordinates different from the center coordinate within the region including the center coordinate, thereby calculating a tested statistic. <P>COPYRIGHT: (C)2012,JPO&INPIT |
