[Discuss-gnuradio] gr.fir_filter_xxx()

[kelvin loi]

Hi all,
Has anybody out there dive into the C++ code for the
gr.fir_filter_xxx() block??? Because i just wondering
why  GNU radio can actually do decimation before the
polyphase FIR filter? That actually is not allowed in
signal processing theory isn't it? Because it will
cause aliasing. Please give me some guidance. Thanks.

Cheers,
kelvin

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