I have applied CWT technique in various solar related disturbances to study temporal variation in TEC over the geographical latitude (26 - 29 degree N) and longitude ( 81 to 87 degrees E). However, none of the results provide better representation in the time-frequency domain. What is the reason behind this? Is there any factor that we can change in CWT code to observe the transients more clearly? Or is there any relevant sites which produce GIM with filtered TEC?
I agree with G Abhilash
,You need to understand that each wavelet (base) function has a different relationship between scale and frequency. That is, each base "sees" the information in a different way in relation to the frequency.
You must know what are the frequencies of interest in your signal. Then you must find out what are the frequencies that the chosen wavelet base highlights on the a = 1 scale, for example. Finally, you can choose your range of scales.
Thank you Bruno Rodrigues de Oliveira for your response. I find it really useful.
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