Forum Discussion
Altera_Forum
Honored Contributor
Honored ContributorFIR filter design with IEEE 754 half-precision floating point
Hi All We are in the initial phase of a project which implements processing of biomedical signals. I am trying to implement FIR filter with IEEE 754 half-precision (16-bit) floating point ari...
Altera_ForumHonored Contributor
Honored ContributorYou want to look at fractional integer formats. Go through these slides:
http://www.ovro.caltech.edu/~dwh/correlator/pdf/esc-111paper_hawkins.pdf http://www.ovro.caltech.edu/~dwh/correlator/pdf/esc-111slides_hawkins.pdf and source http://www.ovro.caltech.edu/~dwh/correlator/pdf/esc2011_fpga_dsp_code.zip You'll want to look at using convergent rounding, there's code in that zip. If you're testing FIR filters, then you can use an LFSR as a digital noise source: http://www.ovro.caltech.edu/~dwh/correlator/pdf/lfsr_tutorial.pdf http://www.ovro.caltech.edu/~dwh/correlator/pdf/lfsr_tutorial_src.zip Cheers, Dave
