Hello, I am trying to choose a DSP for different filtering operations. I ll use 2 biquad IIR ( 2 IIRs of 2nd order). I will have 3 input signals that i will sampled at 1khz, 2khz and 10 khz. How many MIPs odes it cost? Thank you
Computation Cost for 2 biquad IIR
Started by ●February 26, 2004
Reply by ●February 26, 20042004-02-26
Well, you will have 5 coefficient multiplies per IIR biquad and 4 or 5 additions which are usually done in parallel or as part of the MAC instruction (depends on the DSP and fixed point/floating point mode), so just count the multiplies. The rest is simple arithmetic. Hope this helps. -- Dave Wooff dave@dmwooff.freeserve.co.uk domistep <domistep@free.fr> wrote in message news:11efef01.0402261303.606e0411@posting.google.com...> Hello, > > I am trying to choose a DSP for different filtering operations. > > I ll use 2 biquad IIR ( 2 IIRs of 2nd order). > > I will have 3 input signals that i will sampled at 1khz, 2khz and 10 khz. > > How many MIPs odes it cost? > > > Thank you