gr_peak_detector2_fb.h

Go to the documentation of this file.
00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2007 Free Software Foundation, Inc.
00004  * 
00005  * This file is part of GNU Radio
00006  * 
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 3, or (at your option)
00010  * any later version.
00011  * 
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  * 
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 51 Franklin Street,
00020  * Boston, MA 02110-1301, USA.
00021  */
00022 
00023 #ifndef INCLUDED_gr_peak_detector2_FB_H
00024 #define INCLUDED_gr_peak_detector2_FB_H
00025 
00026 #include <gr_sync_block.h>
00027 
00028 class gr_peak_detector2_fb;
00029 typedef boost::shared_ptr<gr_peak_detector2_fb> gr_peak_detector2_fb_sptr;
00030 
00031 gr_peak_detector2_fb_sptr gr_make_peak_detector2_fb (float threshold_factor_rise = 7,
00032                                                      int look_ahead = 1000,
00033                                                      float alpha = 0.001);
00034 
00052 class gr_peak_detector2_fb : public gr_sync_block
00053 {
00054   friend gr_peak_detector2_fb_sptr 
00055   gr_make_peak_detector2_fb (float threshold_factor_rise, int look_ahead, float alpha);
00056   
00057   gr_peak_detector2_fb (float threshold_factor_rise, int look_ahead, float alpha);
00058   
00059 private:
00060   float d_threshold_factor_rise;
00061   int d_look_ahead;
00062   int d_look_ahead_remaining;
00063   int d_peak_ind;
00064   float d_peak_val;
00065   float d_alpha;
00066   float d_avg;
00067   bool d_found;
00068   
00069 public:
00070   
00074   void set_threshold_factor_rise(float thr) { d_threshold_factor_rise = thr; }
00075   
00079   void set_look_ahead(int look) { d_look_ahead = look; }
00080   
00084   void set_alpha(int alpha) { d_alpha = alpha; }
00085   
00089   float threshold_factor_rise() { return d_threshold_factor_rise; }
00090   
00094   int look_ahead() { return d_look_ahead; }
00095   
00099   float alpha() { return d_alpha; }
00100   
00101   int work (int noutput_items,
00102             gr_vector_const_void_star &input_items,
00103             gr_vector_void_star &output_items);
00104 };
00105 
00106 #endif
00107 
00108 

Generated on Thu Mar 5 09:01:11 2009 for GNU Radio 3.1.3 by  doxygen 1.5.8