| 摘要 |
PURPOSE:To obtain a pattern recognizing method with high accuracy capable of mixing the information of frequency band areas exceeding limitation in limited number of frequency band areas. CONSTITUTION:A continuous electric signal Si for analysis is conversion- processed to a discrete signal So with a sampling frequency f1 lover than the frequency of two times the frequency band area to be analyzed, and a signal with frequency of 1/2 the sampling frequency is superimposed on an original signal by analyzing the discrete signal So, and recognizing a pattern by an analyzed discrete signal So. Thereby, it is possible to mix the information of the frequency band areas exceeding limitation in the limited number of frequency band areas f1. |
