SIGNAL PLACE/VARIATION PARAMETER DETECTION METHOD, SIGNAL PLACE/VARIATION PARAMETER DETECTION DEVICE, AND PROGRAM AND RECORDING MEDIUM THEREOF

摘要

PROBLEM TO BE SOLVED: To provide a signal place/variation parameter detection method of robustly detecting a signal.;SOLUTION: Target basic features comprising vectors are extracted from a target sginal, one or more features are selected out of the target basic features, and degenerative features are calculated from the relationship between the basic features to extract a target degenerative feature. Basic features corresponding to accumulated degenerative features which are the same as or similar to the target degenerative feature are input and variation parameters between the target basic feature and an accumulated basic feature are calculated from the relationship between the basic features. Then a target generation feature corresponding to the accumulated basic feature is generated from the target basic feature. Alternatively, an accumulated generation feature corresponding to the target basic feature is generated from the accumulated basic feature. The similarity between the target generation feature and accumulated basic feature and the similarity between the target basic feature and accumulated generation feature are calculated, and a place and a variation parameter of an accumulation signal similar to a target signal are calculated.;COPYRIGHT: (C)2008,JPO&INPIT