#include <gr_iir.h>
Public Member Functions | |
| gr_iir (const vector< tap_type > &fftaps, const vector< tap_type > &fbtaps) | |
| construct new IIR with given taps. | |
| gr_iir () | |
| virtual | ~gr_iir () |
| virtual o_type | filter (const i_type input) |
| compute a single output value. | |
| virtual void | filterN (o_type output[], const i_type input[], unsigned long n) |
compute an array of N output values. input must have n valid entries. | |
| unsigned | ntaps () const |
| virtual void | set_taps (const vector< tap_type > &newfftaps, const vector< tap_type > &newfbtaps) |
install new_taps as the current taps. | |
Protected Attributes | |
| vector< tap_type > | fftaps |
| vector< tap_type > | fbtaps |
| int | latest |
| vector< o_type > | prev_output |
| vector< o_type > | prev_input |
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construct new IIR with given taps. Note that taps must be in backwards order, e.g., coefficient 0 is stored in xxtaps[N-1], coefficient 1 is stored in xxtaps[N-2], etc. fftaps comtains the feed-forward taps, and fbtaps the feedback ones |
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compute a single output value.
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compute an array of N output values.
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install
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1.3.3