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Altera_Forum
Honored Contributor
Honored Contributorhow to choose to truncate signal width
when the signed signal pass through multiply or FIR ,the signal width extend.how should i choose to truncate the signal width . generally,we truncate (LSB)Least Significant Bit ,retain MSB. But,in my...
Altera_ForumHonored Contributor
Honored ContributorUsually you would model the filter with fixed point, and then see what kind of accuracy is acceptable. Then you can truncate accordingly. Remember that rounding errors will compound if you have chained filters.
