Title :
Time Frequency Image Analysis Using Neural Networks
Author :
Shafi, Imran ; Ahmad, Jawad ; Shah, Syed Ismail ; Kashif, Faisal M.
Author_Institution :
Iqra Univ., Islamabad
Abstract :
A realization of obtaining energy concentration along instantaneous frequency (IF) for blurry time frequency images (TFIs) is proposed using neural networks (NNs). NN captures the fundamental principle at work once trained with various spectrogram TFIs by defining various edges present in input data. Unknown spectrogram TFIs of multi component signals, are then given as test images to the trained NN measuring the information content in each input and resultant TFI thus manifest the effectiveness of NNs in TFI analysis
Keywords :
edge detection; image processing; learning (artificial intelligence); neural nets; time-frequency analysis; energy concentration; instantaneous frequency; multicomponent signals; neural networks; time frequency image analysis; time frequency images; Chirp modulation; Filters; Gray-scale; Image analysis; Kernel; Neural networks; Power engineering and energy; Spectrogram; Systems engineering and theory; Time frequency analysis;
Conference_Titel :
Computational Engineering in Systems Applications, IMACS Multiconference on
Conference_Location :
Beijing
Print_ISBN :
7-302-13922-9
Electronic_ISBN :
7-900718-14-1
DOI :
10.1109/CESA.2006.4281670