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Farrow structure time delay filter (or filter bank). And how is a signal delayed through a filter?

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chen jiyuan
chen jiyuan 2021-3-8
编辑： chen jiyuan 2021-3-9
how to use matlab to code Farrow structure time delay filter (or filter bank), or use Function in Matlab in dfilt.farrowfd and fdesign.fracdelay to delay a signal.
For example, how to delay tau in a signal x(t)=exp(j*2*pi*(t-tau).^2) , and tau is a fraction delay, like tau=1.4*(1/fs).

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