FreeCalypso > hg > fc-tourmaline
view src/cs/layer1/gtt_include/ctm/viterbi.h @ 147:1075ec44acca
mmiDummy.c: bogotab fixes
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Mon, 16 Nov 2020 05:47:02 +0000 |
parents | 4e78acac3d88 |
children |
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/* ******************************************************************************* * * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH * * The program(s) may be used and/or copied only with the * written permission from Ericsson or in accordance * with the terms and conditions stipulated in the agreement or * contract under which the program(s) have been supplied. * ******************************************************************************* * * File : viterbi.h * Purpose : Header file for viterbi.c * Author : Francisco Javier Gil Gomez * * Revision history * * $Log: $ * ******************************************************************************* */ #ifndef viterbi_h #define viterbi_h "$Id: $" #include <stdio.h> #include <math.h> #include "conv_poly.h" /* definition of viterbi_t */ /***********************************************************************/ /* viterbi_init() */ /* ************** */ /* Initialization of the Viterbi decoder. */ /* */ /* output variables: */ /* *viterbi_state initialized state variable of the decoder */ /* */ /***********************************************************************/ void viterbi_init(viterbi_t* viterbi_state); /***********************************************************************/ /* viterbi_reinit() */ /* **************** */ /* Re-Initialization of the Viterbi decoder. This function should be */ /* used for re-setting a Viterbi decoder that has already been */ /* initialized. In contrast to viterbi_init(), this reinit function */ /* does not calculate the values of all members of viterbi_state that */ /* do not change during the execution of the Viterbi algorithm. */ /* */ /* output variables: */ /* *viterbi_state initialized state variable of the decoder */ /* */ /***********************************************************************/ void viterbi_reinit(viterbi_t* viterbi_state); /***********************************************************************/ /* viterbi_exec() */ /* ************** */ /* Execution of the Viterbi decoder */ /* */ /* input variables: */ /* inputword Vector with gross bits */ /* length_input Number of valid gross bits in vector inputword.*/ /* length_input must be an integer multiple of */ /* CHC_RATE */ /* */ /* output variables: */ /* out Vector with the decoded net bits. The net bits */ /* are either 0 or 1. */ /* *num_valid_out_bits Number of valid bits in vector out */ /* */ /* input/output variables: */ /* *viterbi_state State variable of the decoder */ /* */ /***********************************************************************/ void viterbi_exec(WORD16* inputword, WORD16 length_input, WORD16* out, WORD16* num_valid_out_bits, viterbi_t* viterbi_state); #endif