diff options
| author | ghostop14 <ghostop14@gmail.com> | 2020-02-04 18:37:41 -0500 |
|---|---|---|
| committer | Michael Dickens <michael.dickens@ettus.com> | 2020-02-15 19:20:26 -0500 |
| commit | 012870af22ae873b3b998691de8e81752179d266 (patch) | |
| tree | d294d2d83b4f94b11922cf2873ebaf473bb36df3 /gr-blocks/lib/correctiq_man_impl.h | |
| parent | f6a346d8b59050b2da520c80f7fab9d85018e350 (diff) | |
Blocks: Add DC Spike Removal and IQ Swap Native Blocks
This block incorporates the OOT modules in correctiq that provide
3 different techniques to remove the DC spike inherent in IQ sampling.
The first technique mirrors SDR GUI receivers with an IIR filter
approach, the second provides a time-limited IIR approach where after
a user-configurable number of seconds locks into a basic offset
correction to eliminate the effect of the filter on the signal while
maintaining the correction, and the last is manual I and Q
configurable offsets. The Swap IQ block is a drop-in block to help
correct for inverted spectrums and just swaps I<->Q.
Diffstat (limited to 'gr-blocks/lib/correctiq_man_impl.h')
| -rw-r--r-- | gr-blocks/lib/correctiq_man_impl.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/gr-blocks/lib/correctiq_man_impl.h b/gr-blocks/lib/correctiq_man_impl.h new file mode 100644 index 0000000000..edaaf2ff0e --- /dev/null +++ b/gr-blocks/lib/correctiq_man_impl.h @@ -0,0 +1,54 @@ +/* -*- c++ -*- */ +/* + * Copyright 2020 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * SPDX-License-Identifier: GPL-3.0-or-later + * + */ + +#ifndef INCLUDED_CORRECTIQ_CORRECTIQ_MAN_IMPL_H +#define INCLUDED_CORRECTIQ_CORRECTIQ_MAN_IMPL_H + +#include <gnuradio/blocks/correctiq_man.h> + +namespace gr { +namespace blocks { + +class correctiq_man_impl : public correctiq_man +{ +private: + float d_avg_real; + float d_avg_img; + + gr_complex d_k; + + int d_buffer_size; + gr_complex* d_volk_const_buffer; + + void set_const_buffer(int new_size); + void fill_const_buffer(); + +public: + correctiq_man_impl(float real, float imag); + ~correctiq_man_impl(); + + virtual float get_real(); + virtual float get_imag(); + + virtual void set_real(float new_value); + virtual void set_imag(float new_value); + + void handle_real(pmt::pmt_t msg); + void handle_imag(pmt::pmt_t msg); + + int work(int noutput_items, + gr_vector_const_void_star& input_items, + gr_vector_void_star& output_items); +}; + +} // namespace blocks +} // namespace gr + +#endif /* INCLUDED_CORRECTIQ_CORRECTIQ_MAN_IMPL_H */ |