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the function of removal filter in project no-OS-2014_R2.

Question asked by angleIsDancing on Mar 17, 2016
Latest reply on Mar 25, 2016 by rejeesh


In the project no-OS-2014_R2, it removes a known DC offset and takes a removal filter actions(in the file ad_dcfilter.v). I have seen the web page I/Q Correction [Analog Devices Wiki]. It just says that the data needs to be removed the DC offset, But it does not mention the removal filter.

my questions are:

1. Why does it need a removal filter?

2. How is the removal filter process the data by it's coefficient?