cordic.h

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// 
// author="Tony Kirke"
// Copyright (c) 1993-1998 Tony Kirke
/*
 * SPUC - Signal processing using C++ - A DSP library
 * 
 * This program 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 2, or (at your option)
 * any later version.
 * 
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef CRDC
#define CRDC
#include <math.h>
#include <complex.h>
namespace SPUC {








class cordic
{
public:
        double* arctan_lut;
        complex<long>* stage;
        int stages;
        double vector_angle;
        cordic(int n=7);
        long vector_mag(complex <long> in) {
          vector(in);
        }
        double vector_arg(complex <long> in) {
          vector(in);
          return(vector_angle);
        }
        complex <long> rotate(complex <long> in, double angle);
 protected:
        complex<long> vector(complex <long> in);
};
} // namespace SPUC 
#endif

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