transfer learning.
We will see one by one clearly.
first what is sEMG ?
Electromyography is an electrodiagnostic medicine technique for evaluating and recording the electrical activity produced by skeletal muscles.
Simply saying, When muscles contraction an elactical plus will be created , we record them using
elctrodes and emg sensors,
this will create non-stationary signals
we can claasify our sugnals into two types,
1. stationary signals
2.non-stationary signals
stationary singals means with the time the features of the signals never change
example amplitde and frequency
but non stationry signals will change over time ,
there are two domains in signals
1.time domain
2.frequency domain
time domain plot signals time(x_axis) versus amplitude (y_axis) or strength(y_axis)
we can gether information about amplitude
problems is we cant decompose a noicy singal,
frequency domain plots frequency (x_axis) vs amplitude(y_axis)
so we can easily decompose signals according to their frequency,
example
we will use Fourier transform to convert time domain to frequency domain
we are going to use a freely available data set for this problem
