A High Precision Time-frequency Analysis Method
نویسندگان
چکیده
منابع مشابه
A High Precision Time-frequency Analysis Method
To analysis the signal whose frequency changes as time, this article presents a new time-frequency analysis method based on short-time fractional Fourier transform (FRFT) and integration of midpoints. This method uses window functions to divide the signal to many pieces, then the FRFT is used to calculate the frequency modulation (FM) rate of each piece. A chirp signal can be built based on the...
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ژورنال
عنوان ژورنال: International Journal of Signal Processing, Image Processing and Pattern Recognition
سال: 2015
ISSN: 2005-4254
DOI: 10.14257/ijsip.2015.8.7.24