Lowpass filter

[DimitryP6]

Changes

Created a exponential moving average lowpass filter

Notes

alpha seems to work well for 0.1

Test Cases

int main() {
float noisy_signal[] = {10.0, 20.0, 15.0, 25.0, 20.0};
for (int i = 0; i < 5; i++){
// Something like this: ema_filter(noisy_signal[i], &previous_ema, alpha);
}
return 0;
}

To Do

seems finished

Checklist

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Closes #173

[jr1221]

Please add a simple_ema.h file in includes so that the function can be publicly called. Please move your comment on top of the function there as well.