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rf acquisition & signal processing

Hello evreryone,

I need to do acquisition during 24h for signal antenna (with 433Mhz and
bandwith is 2Mhz)with PXI with Labview.
Each 1ms the data are acquired,
That  data is filtered,
Then the power rms is calculated,
Then downsampling,(because the pxi sample at 64Msample/s, I need to
downsample for have less sampling),
And then stored in the file.

But I am a newuser in Labview, I have already look at example online
but I have not saw the example which can help me. I work with Labview
7.1 and PXI 1044(with NI PXI-5600 and NI PXI-5620).

I need your help.

Thank you very much



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Hello abedi,

 

I see that this question has remained unanswered for quite some time. (I'm on a quest to answer all previously unanswered posts 😉 )

I suspect that this question is no longer open.

 

If you still have some questions related to this, then please don't hesitate to let us know.

Kind Regards,
Thierry C - CLA, CTA - Senior R&D Engineer (Former Support Engineer) - National Instruments
If someone helped you, let them know. Mark as solved and/or give a kudo. 😉
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Il faut regarder la doc de la carte mais de mémoire il n'est pas necessaire de downsampler car la carte offre l'option DDC et permet d'obtenir directement la bande de signal désirée. 

Je crois aussi que la carte embarque un OSP et permet d'effectuer la mesure du puissance RMS directement.

Restent quelques questions en suspens. sur combien de points veut on effectuer la mesure ?

Doit on l'effectuer vraiment  toutes les ms ?

 

jerome

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