diff options
| author | Tom Rondeau <trondeau@vt.edu> | 2013-03-06 11:46:57 -0500 |
|---|---|---|
| committer | Tom Rondeau <trondeau@vt.edu> | 2013-03-06 11:46:57 -0500 |
| commit | 9cfd03bd98693e62c6898f18d90d5d08f4d5c102 (patch) | |
| tree | 4c0a9c65b3775ec8b7dd5e3f73c22cd0684b44fb /gr-blocks/include | |
| parent | 520626bcc203a15ec22ed7351204662a33a17ef5 (diff) | |
blocks: moving peak_detector and moving_average to gr-blocks.
Diffstat (limited to 'gr-blocks/include')
| -rw-r--r-- | gr-blocks/include/blocks/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | gr-blocks/include/blocks/moving_average_XX.h.t | 84 | ||||
| -rw-r--r-- | gr-blocks/include/blocks/peak_detector_XX.h.t | 117 |
3 files changed, 203 insertions, 0 deletions
diff --git a/gr-blocks/include/blocks/CMakeLists.txt b/gr-blocks/include/blocks/CMakeLists.txt index 66cdbf41c5..a223731cb0 100644 --- a/gr-blocks/include/blocks/CMakeLists.txt +++ b/gr-blocks/include/blocks/CMakeLists.txt @@ -73,12 +73,14 @@ expand_h(argmax_XX fs is ss) expand_h(divide_XX ss ii ff cc) expand_h(integrate_XX ss ii ff cc) expand_h(max_XX ff ii ss) +expand_h(moving_average_XX ss ii ff cc) expand_h(multiply_XX ss ii) expand_h(multiply_const_XX ss ii) expand_h(multiply_const_vXX ss ii ff cc) expand_h(mute_XX ss ii ff cc) expand_h(not_XX bb ss ii) expand_h(or_XX bb ss ii) +expand_h(peak_detector_XX fb ib sb) expand_h(probe_signal_X b s i f c) expand_h(probe_signal_vX b s i f c) expand_h(sample_and_hold_XX bb ss ii ff) diff --git a/gr-blocks/include/blocks/moving_average_XX.h.t b/gr-blocks/include/blocks/moving_average_XX.h.t new file mode 100644 index 0000000000..6b7883fdd4 --- /dev/null +++ b/gr-blocks/include/blocks/moving_average_XX.h.t @@ -0,0 +1,84 @@ +/* -*- c++ -*- */ +/* + * Copyright 2008,2013 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +// @WARNING@ + +#ifndef @GUARD_NAME@ +#define @GUARD_NAME@ + +#include <blocks/api.h> +#include <gr_sync_block.h> + +namespace gr { + namespace blocks { + + /*! + * \brief output is the moving sum of the last N samples, scaled by the scale factor + * \ingroup filter_blk + */ + class BLOCKS_API @NAME@ : virtual public gr_sync_block + { + public: + // gr::blocks::@NAME@::sptr + typedef boost::shared_ptr<@NAME@> sptr; + + /*! + * Create a moving average block. + * + * \param length Number of samples to use in the average. + * \param scale scale factor for the result. + * \param max_iter limits how long we go without flushing the accumulator + * This is necessary to avoid numerical instability for float and complex. + */ + static sptr make(int length, @O_TYPE@ scale, + int max_iter = 4096); + + /*! + * Get the length used in the avaraging calculation. + */ + virtual int length() const = 0; + + /*! + * Get the scale factor being used. + */ + virtual @O_TYPE@ scale() const = 0; + + /*! + * Set both the length and the scale factor together. + */ + virtual void set_length_and_scale(int length, @O_TYPE@ scale) = 0; + + /*! + * Set the length. + */ + virtual void set_length(int length) = 0; + + /*! + * Set the scale factor. + */ + virtual void set_scale(@O_TYPE@ scale) = 0; + }; + + } /* namespace blocks */ +} /* namespace gr */ + +#endif /* @GUARD_NAME@ */ diff --git a/gr-blocks/include/blocks/peak_detector_XX.h.t b/gr-blocks/include/blocks/peak_detector_XX.h.t new file mode 100644 index 0000000000..1c8ba0652f --- /dev/null +++ b/gr-blocks/include/blocks/peak_detector_XX.h.t @@ -0,0 +1,117 @@ +/* -*- c++ -*- */ +/* + * Copyright 2007,2013 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +// @WARNING@ + +#ifndef @GUARD_NAME@ +#define @GUARD_NAME@ + +#include <blocks/api.h> +#include <gr_sync_block.h> + +namespace gr { + namespace blocks { + + /*! + * \brief Detect the peak of a signal + * \ingroup level_blk + * + * If a peak is detected, this block outputs a 1, + * or it outputs 0's. + */ + class GR_CORE_API @NAME@ : virtual public gr_sync_block + { + public: + // gr::blocks::@NAME@::sptr + typedef boost::shared_ptr<@NAME@> sptr; + + /*! + * Make a peak detector block. + * + * \param threshold_factor_rise The threshold factor determins + * when a peak has started. An average of the signal is + * calculated and when the value of the signal goes over + * threshold_factor_rise*average, we start looking for a + * peak. + * \param threshold_factor_fall The threshold factor determins + * when a peak has ended. An average of the signal is + * calculated and when the value of the signal goes + * bellow threshold_factor_fall*average, we stop looking + * for a peak. + * \param look_ahead The look-ahead value is used when the + * threshold is found to look if there another peak + * within this step range. If there is a larger value, + * we set that as the peak and look ahead again. This is + * continued until the highest point is found with This + * look-ahead range. + * \param alpha The gain value of a moving average filter + */ + static sptr make(float threshold_factor_rise = 0.25, + float threshold_factor_fall = 0.40, + int look_ahead = 10, + float alpha = 0.001); + + /*! \brief Set the threshold factor value for the rise time + * \param thr new threshold factor + */ + virtual void set_threshold_factor_rise(float thr) = 0; + + /*! \brief Set the threshold factor value for the fall time + * \param thr new threshold factor + */ + virtual void set_threshold_factor_fall(float thr) = 0; + + /*! \brief Set the look-ahead factor + * \param look new look-ahead factor + */ + virtual void set_look_ahead(int look) = 0; + + /*! \brief Set the running average alpha + * \param alpha new alpha for running average + */ + virtual void set_alpha(int alpha) = 0; + + /*! \brief Get the threshold factor value for the rise time + * \return threshold factor + */ + virtual float threshold_factor_rise() = 0; + + /*! \brief Get the threshold factor value for the fall time + * \return threshold factor + */ + virtual float threshold_factor_fall() = 0; + + /*! \brief Get the look-ahead factor value + * \return look-ahead factor + */ + virtual int look_ahead() = 0; + + /*! \brief Get the alpha value of the running average + * \return alpha + */ + virtual float alpha() = 0; + }; + + } /* namespace blocks */ +} /* namespace gr */ + +#endif /* @GUARD_NAME@ */ |