/*******************************************************************************
* SDR Trunk
* Copyright (C) 2014 Dennis Sheirer
*
* 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 3 of the License, 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, see <http://www.gnu.org/licenses/>
******************************************************************************/
package sample.complex;
public class ComplexSampleUtils
{
public static Complex multiply( Complex a,
Complex b )
{
return new Complex(
( a.inphase() * b.inphase() ) - ( a.quadrature() * b.quadrature() ),
( ( a.quadrature() * b.inphase() ) + ( a.inphase() * b.quadrature() ) ) );
}
public static Complex minus( Complex a, Complex b )
{
return new Complex( a.inphase() - b.inphase(),
a.quadrature() - b.quadrature() );
}
public static double magnitude( Complex sample )
{
return Math.sqrt( magnitudeSquared( sample ) );
}
public static int magnitudeSquared( Complex sample )
{
return (int)( ( sample.inphase() * sample.inphase() ) +
( sample.quadrature() * sample.quadrature() ) );
}
}