Hi everyone,
I was wondering if any of you could help me find an algorithm for FFT on T4.1 WITHOUT using the audio boad. I need to process a repeating falling exponential wich in time can elong or shorten his time constant (it is a signal from a pulse induction metal detector, feeded to the teensy via an external precision ADC). Since I am deisgning the whole sistem, I am free to set all the parameters as I want. Problem is, i really didn't find any algorithm that allows me to process the FFT from raw data! That's really the only thing I need, a base code or a library that allows me to process those data, I will think about all the parameters setting to fit my specific case.
Beside that, has anyone ever measured the time constant of a falling exponential? Is there any curve-fitting library witch i can use?
Thaks guys!
I was wondering if any of you could help me find an algorithm for FFT on T4.1 WITHOUT using the audio boad. I need to process a repeating falling exponential wich in time can elong or shorten his time constant (it is a signal from a pulse induction metal detector, feeded to the teensy via an external precision ADC). Since I am deisgning the whole sistem, I am free to set all the parameters as I want. Problem is, i really didn't find any algorithm that allows me to process the FFT from raw data! That's really the only thing I need, a base code or a library that allows me to process those data, I will think about all the parameters setting to fit my specific case.
Beside that, has anyone ever measured the time constant of a falling exponential? Is there any curve-fitting library witch i can use?
Thaks guys!