How to remove noise from ECG Signal

[Abuzar]

Hello,

i am receiving ECG signal on my serial port from a custom made board at a baud rate of 115200.

The problem with the signal is that it contains powerline interference in it and has not removed although i have incorporated analog filters in my circuit.

Pls guide me how i can remove the noise digitally in labview and can have a noise free signal.

Thanks

[Xuesong_Liu]

Hi,

Biosignal Filtering VI of Biomedical Toolkit can help to remove powerline noises.

You can use a notch filter to remove the noise at a specified frequency, such as powerline noise.

You can also use a bandpass or lowpass filter to remove all information which is not in the band of interest for ECG signal.

[Abuzar]

hello Xuesong

i installed biomedical tool kit 2012, but did not found it useful in filtering out the noise. Also it works on saved files and i want to work in real time.

Kinldy guide me

Thanks

[Xuesong_Liu]

Hi,

You can use Biosignal Filtering VI for online processing. You can use Write Biosignal Express VI to write your signal to TDMS file and post it here together with your VIs.