- This topic has 6 replies, 3 voices, and was last updated 9 years, 10 months ago by
alistu.
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January 27, 2016 at 8:06 am #29317
FadyParticipantI have added constellation visualizers to view the constellation diagram in the advanced OFDM modulation examples (SEE TOPOLOGY ATTACHED) but I can not see any change in the results between the input and the output. Could you please help with that?
Many thanks -
January 27, 2016 at 8:26 am #29325
prakash jatParticipanti am facing same think
we need reply from damian sir -
January 27, 2016 at 8:40 am #29328
alistuParticipantHi Fady,
I can see no attachment, but I am guessing you are using OFDM 13 component. OFDM 13 shows the constellation after the decision about the region of each symbol is taken, so it looks ideal. If you would like to see the constellation before the decision step, you can use project browser.
Regards
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January 27, 2016 at 9:05 am #29333
FadyParticipantThanks Alistu,
I am using OFDM 13 component and I tried uploading the file twice, anyway I found the constellation diagram using the project browser.
Thank you!-
January 27, 2016 at 9:08 am #29334
alistuParticipantYou’re welcome. Here’s where the constellation can be found using project browser (for Prakash who was also interested to know): Project Browser->OFDM Demodulation->Graphs->Constellation diagram before carrier estimation. Damian suggested it in another forum topic a while ago.
Regards
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January 27, 2016 at 12:56 pm #29336
prakash jatParticipanthi alistu
nice reply but why it is remain idle constellation) after ofdm block?-
January 28, 2016 at 9:57 am #29346
alistuParticipantThe constellation diagram that can be seen after the OFDM demodulator shows points only in the main places they have to be in. This is because the new OFDM component decides the place of them based on which of these main points each constellation point is closest to. This is why the constellation looks ideal.
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