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Entry  Wed Feb 13 16:58:40 2013, Martin Petriska, Nonuniform sampling 
    Reply  Wed Feb 13 17:03:53 2013, Stefan Ritt, Nonuniform sampling 
Message ID: 218     Entry time: Wed Feb 13 17:03:53 2013     In reply to: 217
Author: Stefan Ritt 
Subject: Nonuniform sampling 

Martin Petriska wrote:

 Are there any plans to include reconstruction of nonuniform sampling  in DRS4 to get uniformly sampled data?

Im now reading article IEEE Trans on Circ. ans Systems I, Vol.55 No.8 sept. 2008 Reconstruction of Nonuniformly Sampled Bandlimited Signals Usinga Differentiator–Multiplier Cascade by Stefan Tertinek and Christian Vogel

and plan to implement it, but may be somebody has it done before me.

 

Interesting paper. I was not aware of this method. Sounds interesting. AFAIK, nobody has implemented it so far.

My (old) plan was to linearly interpolate samples (something you could do in an FPGA as well), but this will introduce (small) errors. The next best thing would be to do some spline interpolation, but this is time consuming and not suited for an FPGA.

If you get good results with the method above, please let others know about it.

/Stefan 

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