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EVM system design/calculation - RF Cafe Forums
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Pär Åhlund Post subject: EVM system design/calculation Unread
postPosted: Mon Jun 13, 2005 6:54 am Offline Lieutenant
Joined: Mon Jun 13, 2005 6:49 am Posts: 1 Hi Do any of
you have a recomendation regarding what software to us for making a
link budget showing expected EVM (error vector magnitude).
Input:
Should be data like drive level, phase/amplitude ripple in filter, compression
point of amplifier and frequency error in mixer
Output: EVM
Sincerely/Pär
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subject: EVM Unread postPosted: Mon Jun 13, 2005 12:59 pm
Most "budgets" have an assumption of linearity hiding in them somewhere.
The essence of EVM is that the greatest portion results from non-linearity.
In fact, the EVM of a signal from different amplifiers with the same
third-order intercept point can vary significantly.
Good Luck
(and I think you'll need it) !
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Post subject: Unread postPosted: Mon Jun 13, 2005 1:15 pm
Try systemview from eaglware-elanix
Posted 11/12/2012
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