Re: [Discuss-gnuradio] Implementing a FIR Filter

[Richard Bell]

I'm having some trouble getting my code to compile. I get the following error:

error: ‘kernel’ does not name a type
         kernel::fir_filter_ccf *d_shape_filter;

To my *_impl.h file I added the following:
#include <gnuradio/filter/fir_filter.h>

private:
        kernel::fir_filter_ccf *d_shape_filter;

To my CMakeLists.txt file I added FILTER to the dependency list:
set(GR_REQUIRED_COMPONENTS RUNTIME FILTER)

I'm not sure where to go from here. What else needs to happen to call kernel::fir_filter_ccf?

Thanks,

Rich

On Wed, Aug 19, 2015 at 9:39 AM, Richard Bell <address@hidden> wrote:

Thank you Jeff. Those are perfect.

Rich

On Tue, Aug 18, 2015 at 3:34 PM, Jeff Long <address@hidden> wrote:

Rich,

hilbert_fc.cc and filter_delay_fc both use kernel::fir_filter in a relatively easy to understand way.

Jeff

On 08/18/2015 04:26 PM, Richard Bell wrote:

Hi all,

Would someone please recommend a good starting point in C++ source code
that demonstrates how one uses the kernel::fir_filter. I started
following the pfb_clock_sync method of implementing it, but then
realized this had been customized a bit for the polyphase approach.

I'm not doing anything fancy, I'm building a modulator and need to pass
symbols through a shaping filter. The shaping filter is what I need the
FIR filter for.

Appreciated,
Rich

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