00001 /* 00002 * SpanDSP - a series of DSP components for telephony 00003 * 00004 * private/awgn.h - An additive Gaussian white noise generator 00005 * 00006 * Written by Steve Underwood <steveu@coppice.org> 00007 * 00008 * Copyright (C) 2001 Steve Underwood 00009 * 00010 * All rights reserved. 00011 * 00012 * This program is free software; you can redistribute it and/or modify 00013 * it under the terms of the GNU Lesser General Public License version 2.1, 00014 * as published by the Free Software Foundation. 00015 * 00016 * This program is distributed in the hope that it will be useful, 00017 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 * GNU Lesser General Public License for more details. 00020 * 00021 * You should have received a copy of the GNU Lesser General Public 00022 * License along with this program; if not, write to the Free Software 00023 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00024 * 00025 * $Id: awgn.h,v 1.1 2008/11/30 12:38:27 steveu Exp $ 00026 */ 00027 00028 #if !defined(_SPANDSP_PRIVATE_AWGN_H_) 00029 #define _SPANDSP_PRIVATE_AWGN_H_ 00030 00031 /*! 00032 AWGN generator descriptor. This contains all the state information for an AWGN generator. 00033 */ 00034 struct awgn_state_s 00035 { 00036 double rms; 00037 long int ix1; 00038 long int ix2; 00039 long int ix3; 00040 double r[98]; 00041 double gset; 00042 int iset; 00043 }; 00044 00045 #endif 00046 /*- End of file ------------------------------------------------------------*/