AWGN input/output erros

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ghada
ghada 2014-12-13
回答： Christian Martinez 2018-7-18
I have a problem at a simuling "AWGN channel" modulation / demodulation QPSK ... the error that appear is : """ Error reported by S-Function 'scomawgnchan2' in 'essai2/AWGN Channel/Dynamic AWGN': When the 'Mode' parameter is set to 'Signal to noise ratio', the input and output must have discrete sample times. """" thank you
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ghada
ghada 2014-12-14
this is why i try to do...without AWGN the block work correctly but when i tried to add the AWGN channel an erros message appear ... i hope someone help me it's urgent....thanks
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ghada
ghada 2014-12-15
answer me please...i can't find a solution to this problem

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回答（2 个）

kangbo zheng
kangbo zheng 2017-3-29
I make the same mistake.
Christian Martinez
Christian Martinez 2018-7-18
I have the same error pop up whenever i run my digital comm system, i read in an 2008 forum we just have to change the continuous values of the output on the modulator block into a discrete output. So the discrete values can get to the awgn channel...

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