digital: removed gr_costas_loop from gnuradio-core that is replaced in gr-digital.

5 files changed, 0 insertions, 380 deletions

diff --git a/gnuradio-core/src/lib/general/Makefile.am b/gnuradio-core/src/lib/general/Makefile.am
index f1f5eff43..f0679388d 100644
--- a/gnuradio-core/src/lib/general/Makefile.am
+++ b/gnuradio-core/src/lib/general/Makefile.am
@@ -54,7 +54,6 @@ libgeneral_la_SOURCES = 		\
 	gr_conjugate_cc.cc		\
 	gr_copy.cc			\
 	gr_correlate_access_code_bb.cc	\
-	gr_costas_loop_cc.cc		\
 	gr_count_bits.cc		\
 	gr_cpfsk_bc.cc			\
 	gr_crc32.cc			\
@@ -208,7 +207,6 @@ grinclude_HEADERS = 			\
 	gr_conjugate_cc.h		\
 	gr_copy.h			\
 	gr_correlate_access_code_bb.h	\
-	gr_costas_loop_cc.h		\
 	gr_count_bits.h			\
 	gr_cpfsk_bc.h			\
 	gr_crc32.h			\
@@ -379,7 +377,6 @@ swiginclude_HEADERS =			\
 	gr_conjugate_cc.i		\
 	gr_copy.i			\
 	gr_correlate_access_code_bb.i	\
-	gr_costas_loop_cc.i		\
 	gr_cpfsk_bc.i			\
 	gr_crc32.i			\
 	gr_ctcss_squelch_ff.i		\
diff --git a/gnuradio-core/src/lib/general/general.i b/gnuradio-core/src/lib/general/general.i
index 7b735f2db..1c3ebeae4 100644
--- a/gnuradio-core/src/lib/general/general.i
+++ b/gnuradio-core/src/lib/general/general.i
@@ -100,7 +100,6 @@
 #include <gr_ofdm_insert_preamble.h>
 #include <gr_ofdm_sampler.h>
 #include <gr_regenerate_bb.h>
-#include <gr_costas_loop_cc.h>
 #include <gr_pa_2x2_phase_combiner.h>
 #include <gr_kludge_copy.h>
 #include <gr_prefs.h>
@@ -223,7 +222,6 @@
 %include "gr_ofdm_insert_preamble.i"
 %include "gr_ofdm_sampler.i"
 %include "gr_regenerate_bb.i"
-%include "gr_costas_loop_cc.i"
 %include "gr_pa_2x2_phase_combiner.i"
 %include "gr_kludge_copy.i"
 %include "gr_prefs.i"
diff --git a/gnuradio-core/src/lib/general/gr_costas_loop_cc.cc b/gnuradio-core/src/lib/general/gr_costas_loop_cc.cc
deleted file mode 100644
index b77b19745..000000000
--- a/gnuradio-core/src/lib/general/gr_costas_loop_cc.cc
+++ /dev/null
@@ -1,186 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2006,2010,2011 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <gr_costas_loop_cc.h>
-#include <gr_io_signature.h>
-#include <gr_expj.h>
-#include <gr_sincos.h>
-#include <math.h>
-
-#define M_TWOPI (2*M_PI)
-
-gr_costas_loop_cc_sptr
-gr_make_costas_loop_cc (float alpha, float beta,
-			float max_freq, float min_freq,
-			int order
-			) throw (std::invalid_argument)
-{
-  return gnuradio::get_initial_sptr(new gr_costas_loop_cc (alpha, beta,
-							max_freq, min_freq,
-							order));
-}
-
-gr_costas_loop_cc::gr_costas_loop_cc (float alpha, float beta,
-				      float max_freq, float min_freq,
-				      int order
-				      ) throw (std::invalid_argument)
-  : gr_sync_block ("costas_loop_cc",
-		   gr_make_io_signature (1, 1, sizeof (gr_complex)),
-		   gr_make_io_signature (1, 2, sizeof (gr_complex))),
-    d_alpha(alpha), d_beta(beta), 
-    d_max_freq(max_freq), d_min_freq(min_freq),
-    d_phase(0), d_freq((max_freq+min_freq)/2),
-    d_order(order), d_phase_detector(0)
-{
-  switch(d_order) {
-  case 2:
-    d_phase_detector = &gr_costas_loop_cc::phase_detector_2;
-    break;
-
-  case 4:
-    d_phase_detector = &gr_costas_loop_cc::phase_detector_4;
-    break;
-
-  case 8:
-    d_phase_detector = &gr_costas_loop_cc::phase_detector_8;
-    break;
-
-  default: 
-    throw std::invalid_argument("order must be 2, 4, or 8");
-    break;
-  }
-}
-
-float
-gr_costas_loop_cc::phase_detector_8(gr_complex sample) const
-{
-  float K = sqrt(2.0) - 1;
-  
-  if(abs(sample.real()) >= abs(sample.imag())) {
-    return ((sample.real()>0 ? 1.0 : -1.0) * sample.imag() -
-	    (sample.imag()>0 ? 1.0 : -1.0) * sample.real() * K);
-  }
-  else {
-    return ((sample.real()>0 ? 1.0 : -1.0) * sample.imag() * K -
-	    (sample.imag()>0 ? 1.0 : -1.0) * sample.real());
-  }
-}
-
-float
-gr_costas_loop_cc::phase_detector_4(gr_complex sample) const
-{
-
-  return ((sample.real()>0 ? 1.0 : -1.0) * sample.imag() -
-	  (sample.imag()>0 ? 1.0 : -1.0) * sample.real());
-}
-
-float
-gr_costas_loop_cc::phase_detector_2(gr_complex sample) const
-{
-  return (sample.real()*sample.imag());
-}
-
-void
-gr_costas_loop_cc::set_alpha(float alpha)
-{
-  d_alpha = alpha;
-}
-
-void
-gr_costas_loop_cc::set_beta(float beta)
-{
-  d_beta = beta;
-}
-
-int
-gr_costas_loop_cc::work (int noutput_items,
-			 gr_vector_const_void_star &input_items,
-			 gr_vector_void_star &output_items)
-{
-  const gr_complex *iptr = (gr_complex *) input_items[0];
-  gr_complex *optr = (gr_complex *) output_items[0];
-  gr_complex *foptr = (gr_complex *) output_items[1];
-
-  bool write_foptr = output_items.size() >= 2;
-
-  float error;
-  gr_complex nco_out;
-  
-  if (write_foptr) {
-
-    for (int i = 0; i < noutput_items; i++){
-      nco_out = gr_expj(-d_phase);
-      optr[i] = iptr[i] * nco_out;
-      
-      error = (*this.*d_phase_detector)(optr[i]);
-      if (error > 1)
-	error = 1;
-      else if (error < -1)
-	error = -1;
-      
-      d_freq = d_freq + d_beta * error;
-      d_phase = d_phase + d_freq + d_alpha * error;
-      
-      while(d_phase>M_TWOPI)
-	d_phase -= M_TWOPI;
-      while(d_phase<-M_TWOPI)
-	d_phase += M_TWOPI;
-      
-      if (d_freq > d_max_freq)
-	d_freq = d_max_freq;
-      else if (d_freq < d_min_freq)
-	d_freq = d_min_freq;
-      
-      foptr[i] = gr_complex(d_freq,0);
-    } 
-  } else {
-    for (int i = 0; i < noutput_items; i++){
-      nco_out = gr_expj(-d_phase);
-      optr[i] = iptr[i] * nco_out;
-      
-      error = (*this.*d_phase_detector)(optr[i]);
-      if (error > 1)
-	error = 1;
-      else if (error < -1)
-	error = -1;
-      
-      d_freq = d_freq + d_beta * error;
-      d_phase = d_phase + d_freq + d_alpha * error;
-      
-      while(d_phase>M_TWOPI)
-	d_phase -= M_TWOPI;
-      while(d_phase<-M_TWOPI)
-	d_phase += M_TWOPI;
-      
-      if (d_freq > d_max_freq)
-	d_freq = d_max_freq;
-      else if (d_freq < d_min_freq)
-	d_freq = d_min_freq;
-      
-    }
-  }
-  return noutput_items;
-}
diff --git a/gnuradio-core/src/lib/general/gr_costas_loop_cc.h b/gnuradio-core/src/lib/general/gr_costas_loop_cc.h
deleted file mode 100644
index 181880f1c..000000000
--- a/gnuradio-core/src/lib/general/gr_costas_loop_cc.h
+++ /dev/null
@@ -1,145 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2006 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.
- */
-
-
-#ifndef INCLUDED_GR_COSTAS_LOOP_CC_H
-#define INCLUDED_GR_COSTAS_LOOP_CC_H
-
-#include <gr_sync_block.h>
-#include <stdexcept>
-#include <fstream>
-
-
-/*! \brief A Costas loop carrier recovery module.
- * \ingroup sync_blk
- *  
- *  The Costas loop locks to the center frequency of a signal and
- *  downconverts it to baseband. The second (order=2) order loop is
- *  used for BPSK where the real part of the output signal is the
- *  baseband BPSK signal and the imaginary part is the error
- *  signal. When order=4, it can be used for quadrature modulations
- *  where both I and Q (real and imaginary) are outputted.
- *
- *  More details can be found online:
- *
- *  J. Feigin, "Practical Costas loop design: Designing a simple and inexpensive
- *  BPSK Costas loop carrier recovery circuit," RF signal processing, pp. 20-36,
- *  2002.
- *
- *  http://rfdesign.com/images/archive/0102Feigin20.pdf
- *  
- * \param alpha the loop gain used for phase adjustment
- * \param beta the loop gain for frequency adjustments
- * \param max_freq the maximum frequency deviation (radians/sample) the loop can handle
- * \param min_freq the minimum frequency deviation (radians/sample) the loop can handle
- * \param order the loop order, either 2 or 4
- */
-class gr_costas_loop_cc;
-typedef boost::shared_ptr<gr_costas_loop_cc> gr_costas_loop_cc_sptr;
-
-
-gr_costas_loop_cc_sptr 
-gr_make_costas_loop_cc (float alpha, float beta,
-			float max_freq, float min_freq, 
-			int order
-			) throw (std::invalid_argument);
-
-
-/*!
- * \brief Carrier tracking PLL for QPSK
- * \ingroup sync_blk
- * input: complex; output: complex
- * <br>The Costas loop can have two output streams:
- *    stream 1 is the baseband I and Q;
- *    stream 2 is the normalized frequency of the loop
- *
- * \p order must be 2 or 4.
- */
-class gr_costas_loop_cc : public gr_sync_block
-{
-  friend gr_costas_loop_cc_sptr gr_make_costas_loop_cc (float alpha, float beta,
-							float max_freq, float min_freq, 
-							int order
-							) throw (std::invalid_argument);
-
-  float d_alpha, d_beta, d_max_freq, d_min_freq, d_phase, d_freq;
-  int d_order;
-
-  gr_costas_loop_cc (float alpha, float beta,
-		     float max_freq, float min_freq, 
-		     int order
-		     ) throw (std::invalid_argument);
-
-  /*! \brief the phase detector circuit for 8th-order PSK loops
-   *  \param sample complex sample
-   *  \return the phase error
-   */
-  float phase_detector_8(gr_complex sample) const;    // for 8PSK
-
-  /*! \brief the phase detector circuit for fourth-order loops
-   *  \param sample complex sample
-   *  \return the phase error
-   */
-  float phase_detector_4(gr_complex sample) const;    // for QPSK
-
-  /*! \brief the phase detector circuit for second-order loops
-   *  \param sample a complex sample
-   *  \return the phase error
-   */
-  float phase_detector_2(gr_complex sample) const;    // for BPSK
-
-
-  float (gr_costas_loop_cc::*d_phase_detector)(gr_complex sample) const;
-
-public:
-
-  /*! \brief set the first order gain
-   *  \param alpha
-   */
-  void set_alpha(float alpha);
-
-  /*! \brief get the first order gain
-   * 
-   */
-  float alpha() const { return d_alpha; }
-  
-  /*! \brief set the second order gain
-   *  \param beta
-   */
-  void set_beta(float beta);
-
-  /*! \brief get the second order gain
-   * 
-   */
-  float beta() const { return d_beta; }
-  
-  int work (int noutput_items,
-	    gr_vector_const_void_star &input_items,
-	    gr_vector_void_star &output_items);
-
-  /*! \brief returns the current NCO frequency in radians/sample
-   *
-   */
-  float freq() const { return d_freq; }
-};
-
-#endif
diff --git a/gnuradio-core/src/lib/general/gr_costas_loop_cc.i b/gnuradio-core/src/lib/general/gr_costas_loop_cc.i
deleted file mode 100644
index 488cab370..000000000
--- a/gnuradio-core/src/lib/general/gr_costas_loop_cc.i
+++ /dev/null
@@ -1,44 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2005,2006 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.
- */
-
-GR_SWIG_BLOCK_MAGIC(gr,costas_loop_cc);
-
-gr_costas_loop_cc_sptr
-gr_make_costas_loop_cc (float alpha, float beta, 
-			float max_freq, float min_freq,
-			int order
-			) throw (std::invalid_argument);
-
-
-class gr_costas_loop_cc : public gr_sync_block
-{
- private:
-  gr_costas_loop_cc (float alpha, float beta,
-		     float max_freq, float min_freq, int order);
-
- public:
-   void set_alpha(float alpha);
-   float alpha();
-   void set_beta(float beta);
-   float beta();
-   float freq();   
-};