How to remove AWGN noise from Electric Field Signals

Hi All, Can any one guide me which filter/ Matlab command is to apply to remove AWGN noise from the Electric Field signals generated through simulation? In fact, i am artificially adding AWGN noise to achieve 20dB SNR to Antenna Array received noiseless signals (Electric Field) to simulate Real-life scenario. But i am unable to find a way or filter to remove this Gaussian noise using some filter scheme. I do not know it will require digital or analogue filter design or what. If some one may send the MatLab code snapshot then it would more handy for me. Thanks

Answer 1

[Image Analyst]

How about smoothing it with medfilt1(), conv(), or sgolayfilt()?

[awais munawar]

Hi Dear, I browsed the MatLab platform and you seem to be much experienced in noise filter design. In fact, i am not working on Images noise removal. My problem is concerned with Electric Fields (Communication Signals) AWGN noise removal. e.g I have an 08 antenna elements and once one is transmitting the rest 07 are receiving the signal. The received E-Field are complex values stored in matrix each column corresponds to One Transmitter location and rows the Receiver antennas. I added AWGN into received signals and now want to filter this added noise to retrieve back the approximately original signal. I hope i made my problem much more clear now. I tried medfilt1 but not getting good results. Also i tried gaussfir but confused with its input parameters as my signal is frequency domain discrete points data. Kindly suggest me the solution. Thanks

[awais munawar]

Image Analyst any help on it? Awaited response...