awgn is missing?

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ahmed alshammari
ahmed alshammari 2012년 2월 18일
댓글: Walter 2022년 11월 26일
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.
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Walter
Walter 2022년 11월 26일
'awgn' requires Communications Toolbox.

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답변(2개)

Wayne King
Wayne King 2012년 2월 18일
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.
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ahmed alshammari
ahmed alshammari 2012년 2월 18일
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 2012년 2월 18일
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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