White Gaussian Noise
in [Matlab]
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From: Rupika Bandara on 30 Apr 2010 00:01 "ade77 " <ade100a(a)gmail.com> wrote in message <hrd41h$m01$1(a)fred.mathworks.com>... > "Rupika Bandara" <rupika23(a)yahoo.com> wrote in message <hrd378$4e$1(a)fred.mathworks.com>... > > I want to add white Gaussian noise of four intensities (i.e. 1%, 2%, 5% and 10% noise to signal ratio) to impact force signals and the acceleration response time histories. Can anyone give me a help? > > if you have communications toolbox: > doc awgn > doc wgn Hi, I went through doc awgn. The first option is Y = AWGN(X,SNR) What does SNR mean? Is it signal to noise ratio? If yes can I use y=awgn(100,0.01) to add 1% noise to 100N force? Can you please give me an idea? Rupika
From: TideMan on 30 Apr 2010 01:30 On Apr 30, 4:01 pm, "Rupika Bandara" <rupik...(a)yahoo.com> wrote: > "ade77 " <ade1...(a)gmail.com> wrote in message <hrd41h$m0...(a)fred.mathworks.com>... > > "Rupika Bandara" <rupik...(a)yahoo.com> wrote in message <hrd378$4...(a)fred.mathworks.com>... > > > I want to add white Gaussian noise of four intensities (i.e. 1%, 2%, 5% and 10% noise to signal ratio) to impact force signals and the acceleration response time histories. Can anyone give me a help? > > > if you have communications toolbox: > > doc awgn > > doc wgn > > Hi, > I went through doc awgn. The first option is Y = AWGN(X,SNR) > What does SNR mean? Is it signal to noise ratio? If yes can I use y=awgn(100,0.01) to add 1% noise to 100N force? Can you please give me an idea? > > Rupika Time for YOU to do some work, buster. RTFM. I for one don't have the patience to spoon-feed you. After all, your professor gets paid to do that. We don't.
From: ImageAnalyst on 30 Apr 2010 06:50 Rupika Bandara: You might also take a look at the imnoise() function in the Image Processing Toolbox.
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