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Diffstat (limited to 'usrp/host/apps-inband/ui_nco.h')
| -rw-r--r-- | usrp/host/apps-inband/ui_nco.h | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/usrp/host/apps-inband/ui_nco.h b/usrp/host/apps-inband/ui_nco.h deleted file mode 100644 index e6d7814ab..000000000 --- a/usrp/host/apps-inband/ui_nco.h +++ /dev/null @@ -1,202 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2002 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_UI_NCO_H -#define INCLUDED_UI_NCO_H - - -#include <vector> -#include <ui_sincos.h> -#include <cmath> - -#include <complex> -typedef std::complex<float> gr_complex; - - -/*! - * \brief base class template for Numerically Controlled Oscillator (NCO) - */ - - -//FIXME Eventually generalize this to fixed point - -template<class o_type, class i_type> -class ui_nco { -public: - ui_nco () : phase (0), phase_inc(0) {} - - virtual ~ui_nco () {} - - // radians - void set_phase (double angle) { - phase = angle; - } - - void adjust_phase (double delta_phase) { - phase += delta_phase; - } - - - // angle_rate is in radians / step - void set_freq (double angle_rate){ - phase_inc = angle_rate; - } - - // angle_rate is a delta in radians / step - void adjust_freq (double delta_angle_rate) - { - phase_inc += delta_angle_rate; - } - - // increment current phase angle - - void step () - { - phase += phase_inc; - if (fabs (phase) > M_PI){ - - while (phase > M_PI) - phase -= 2*M_PI; - - while (phase < -M_PI) - phase += 2*M_PI; - } - } - - void step (int n) - { - phase += phase_inc * n; - if (fabs (phase) > M_PI){ - - while (phase > M_PI) - phase -= 2*M_PI; - - while (phase < -M_PI) - phase += 2*M_PI; - } - } - - // units are radians / step - double get_phase () const { return phase; } - double get_freq () const { return phase_inc; } - - // compute sin and cos for current phase angle - void sincos (float *sinx, float *cosx) const; - - // compute cos or sin for current phase angle - float cos () const { return std::cos (phase); } - float sin () const { return std::sin (phase); } - - // compute a block at a time - void sin (float *output, int noutput_items, double ampl = 1.0); - void cos (float *output, int noutput_items, double ampl = 1.0); - void sincos (gr_complex *output, int noutput_items, double ampl = 1.0); - void sin (short *output, int noutput_items, double ampl = 1.0); - void cos (short *output, int noutput_items, double ampl = 1.0); - void sin (int *output, int noutput_items, double ampl = 1.0); - void cos (int *output, int noutput_items, double ampl = 1.0); - -protected: - double phase; - double phase_inc; -}; - -template<class o_type, class i_type> -void -ui_nco<o_type,i_type>::sincos (float *sinx, float *cosx) const -{ - ui_sincosf (phase, sinx, cosx); -} - -template<class o_type, class i_type> -void -ui_nco<o_type,i_type>::sin (float *output, int noutput_items, double ampl) -{ - for (int i = 0; i < noutput_items; i++){ - output[i] = (float)(sin () * ampl); - step (); - } -} - -template<class o_type, class i_type> -void -ui_nco<o_type,i_type>::cos (float *output, int noutput_items, double ampl) -{ - for (int i = 0; i < noutput_items; i++){ - output[i] = (float)(cos () * ampl); - step (); - } -} - -template<class o_type, class i_type> -void -ui_nco<o_type,i_type>::sin (short *output, int noutput_items, double ampl) -{ - for (int i = 0; i < noutput_items; i++){ - output[i] = (short)(sin() * ampl); - step (); - } -} - -template<class o_type, class i_type> -void -ui_nco<o_type,i_type>::cos (short *output, int noutput_items, double ampl) -{ - for (int i = 0; i < noutput_items; i++){ - output[i] = (short)(cos () * ampl); - step (); - } -} - -template<class o_type, class i_type> -void -ui_nco<o_type,i_type>::sin (int *output, int noutput_items, double ampl) -{ - for (int i = 0; i < noutput_items; i++){ - output[i] = (int)(sin () * ampl); - step (); - } -} - -template<class o_type, class i_type> -void -ui_nco<o_type,i_type>::cos (int *output, int noutput_items, double ampl) -{ - for (int i = 0; i < noutput_items; i++){ - output[i] = (int)(cos () * ampl); - step (); - } -} - -template<class o_type, class i_type> -void -ui_nco<o_type,i_type>::sincos (gr_complex *output, int noutput_items, double ampl) -{ - for (int i = 0; i < noutput_items; i++){ - float cosx, sinx; - sincos (&sinx, &cosx); - output[i] = gr_complex(cosx * ampl, sinx * ampl); - step (); - } -} - -#endif /* INCLUDED_UI_NCO_H */ - |