Aomeen
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Hello all, I'm a new designer in the field of RF system design.. I'm designing an RF system on ptolemy , in order to improve the accuricy , I had to perform RF upsampling with raised cosine filtration "intterpolation filter" Two problems exists,first upsampling causes the constallation of my received signal "64 QAM" to be completely destroyed , even after down sampling , second the signal level at RF is changed when compared to no upsampling case. Sorry for the long topic.
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