Re: [Discuss-gnuradio] Additional Decimation

[Martin Dvh]

Gregory W Heckler wrote:
> Would anyone be interested in an additional decimation stage after the CIC 
> and 
> the halfband filters? The usable bandwidth is ~25-50% of the actual post 
> decimation sample rate, an additional decimation stage (no filtering, just a 
> plain decimation) would allow the sample rate pushed across the USB to be 
> decreased while discarding the unused bandwidth. I am going to pursue this 
> myself and wondered if I should post any Verilog changes I make.
You should be carefull with decimation without additional filtering.
Without filtering your spectrum will flip over at the new niquist boundaries.

Greetings,
Martin
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