awgn is missing?

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ahmed alshammari
ahmed alshammari on 18 Feb 2012
Commented: Walter on 26 Nov 2022
Hi
I just installed Matlab 2011 A for mac and I can not find awgn function. I can not find it under help and i also get error message when i use it. can somebody help.
  1 Comment
Walter
Walter on 26 Nov 2022
'awgn' requires Communications Toolbox.

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Answers (2)

Wayne King
Wayne King on 18 Feb 2012
Hi, awgn() is part of the Communications System Toolbox.
Do you have that product installed?
Enter
>>ver
and see if it is the list of your products.
Alternatively, you can use randn() to add WGN to your signal or image, but awgn() comes with more options.
  1 Comment
ahmed alshammari
ahmed alshammari on 18 Feb 2012
EDU>> ver
-------------------------------------------------------------------------------------
MATLAB Version 7.12.0.635 (R2011a)
MATLAB License Number: STUDENT
Operating System: Mac OS X Version: 10.7.3 Build: 11D50b
Java VM Version: Java 1.6.0_29-b11-402-11D50b with Apple Inc. Java HotSpot(TM) 64-Bit Server VM mixed mode
-------------------------------------------------------------------------------------
MATLAB Version 7.12 (R2011a)
Simulink Version 7.7 (R2011a)
Control System Toolbox Version 9.1 (R2011a)
DSP System Toolbox Version 8.0 (R2011a)
Fixed-Point Toolbox Version 3.3 (R2011a)
Image Processing Toolbox Version 7.2 (R2011a)
Optimization Toolbox Version 6.0 (R2011a)
Signal Processing Toolbox Version 6.15 (R2011a)
Statistics Toolbox Version 7.5 (R2011a)
Symbolic Math Toolbox Version 5.6 (R2011a)
EDU>>
this what I got. I do not think that Communications System Toolbox is installed. Do you know how can I install it. Do you think it is important since i am working on ofdm.

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Wayne King
Wayne King on 18 Feb 2012
I think it would be nice to have since that is your area.
You can get the Communications System Toolbox as an add-on for you student version:

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