GNU Radio 3.6.4.1 C++ API
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Abstract class for FIR with float input, short output and float tapsThis is the abstract class for a Finite Impulse Response filter. More...
#include <gr_fir_fsf.h>
Public Member Functions | |
gr_fir_fsf () | |
construct new FIR with given taps. More... | |
gr_fir_fsf (const std::vector< float > &taps) | |
virtual | ~gr_fir_fsf () |
virtual short | filter (const float input[])=0 |
compute a single output value. More... | |
virtual void | filterN (short output[], const float input[], unsigned long n)=0 |
compute an array of N output values. More... | |
virtual void | filterNdec (short output[], const float input[], unsigned long n, unsigned decimate)=0 |
compute an array of N output values, decimating the input More... | |
virtual void | set_taps (const std::vector< float > &taps) |
install new_taps as the current taps. More... | |
unsigned | ntaps () const |
virtual const std::vector< float > | get_taps () const |
Protected Attributes | |
std::vector< float > | d_taps |
Abstract class for FIR with float input, short output and float taps
This is the abstract class for a Finite Impulse Response filter.
The trailing suffix has the form _IOT where I codes the input type, O codes the output type, and T codes the tap type. I,O,T are elements of the set 's' (short), 'f' (float), 'c' (gr_complex), 'i' (int)
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inline |
construct new FIR with given taps.
Note that taps must be in forward order, e.g., coefficient 0 is stored in new_taps[0], coefficient 1 is stored in new_taps[1], etc.
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inline |
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virtual |
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pure virtual |
compute a single output value.
input
must have ntaps() valid entries. input[0] .. input[ntaps() - 1] are referenced to compute the output value.
Implemented in gr_fir_fsf_simd, and gr_fir_fsf_generic.
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pure virtual |
compute an array of N output values.
input
must have (n - 1 + ntaps()) valid entries. input[0] .. input[n - 1 + ntaps() - 1] are referenced to compute the output values.
Implemented in gr_fir_fsf_generic.
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pure virtual |
compute an array of N output values, decimating the input
input
must have (decimate * (n - 1) + ntaps()) valid entries. input[0] .. input[decimate * (n - 1) + ntaps() - 1] are referenced to compute the output values.
Implemented in gr_fir_fsf_generic.
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inlinevirtual |
References gr_reverse().
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inline |
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inlinevirtual |
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protected |