FreeCalypso > hg > fc-tourmaline
annotate src/cs/layer1/gtt_include/ctm/viterbi.h @ 7:d6f8d6efdf5b
scripts/config-headers.sh: import from Magnetite
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 16 Oct 2020 06:52:37 +0000 |
parents | 4e78acac3d88 |
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rev | line source |
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4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
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1 /* |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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2 ******************************************************************************* |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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3 * |
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4 * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH |
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5 * |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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6 * The program(s) may be used and/or copied only with the |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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7 * written permission from Ericsson or in accordance |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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8 * with the terms and conditions stipulated in the agreement or |
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src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
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9 * contract under which the program(s) have been supplied. |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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10 * |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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11 ******************************************************************************* |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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12 * |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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13 * File : viterbi.h |
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14 * Purpose : Header file for viterbi.c |
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15 * Author : Francisco Javier Gil Gomez |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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16 * |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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17 * Revision history |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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18 * |
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19 * $Log: $ |
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20 * |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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21 ******************************************************************************* |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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22 */ |
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23 |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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24 #ifndef viterbi_h |
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25 #define viterbi_h "$Id: $" |
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26 |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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27 #include <stdio.h> |
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28 #include <math.h> |
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29 |
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30 #include "conv_poly.h" /* definition of viterbi_t */ |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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31 |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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32 |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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33 /***********************************************************************/ |
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34 /* viterbi_init() */ |
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35 /* ************** */ |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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36 /* Initialization of the Viterbi decoder. */ |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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37 /* */ |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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parents:
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38 /* output variables: */ |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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39 /* *viterbi_state initialized state variable of the decoder */ |
4e78acac3d88
src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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40 /* */ |
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src/{condat,cs,gpf,nucleus}: import from Selenite
Mychaela Falconia <falcon@freecalypso.org>
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41 /***********************************************************************/ |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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parents:
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42 |
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src/{condat,cs,gpf,nucleus}: import from Selenite
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43 void viterbi_init(viterbi_t* viterbi_state); |
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44 |
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45 |
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46 /***********************************************************************/ |
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47 /* viterbi_reinit() */ |
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48 /* **************** */ |
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49 /* Re-Initialization of the Viterbi decoder. This function should be */ |
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50 /* used for re-setting a Viterbi decoder that has already been */ |
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51 /* initialized. In contrast to viterbi_init(), this reinit function */ |
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52 /* does not calculate the values of all members of viterbi_state that */ |
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53 /* do not change during the execution of the Viterbi algorithm. */ |
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54 /* */ |
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55 /* output variables: */ |
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56 /* *viterbi_state initialized state variable of the decoder */ |
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57 /* */ |
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58 /***********************************************************************/ |
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59 |
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60 void viterbi_reinit(viterbi_t* viterbi_state); |
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61 |
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62 |
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63 /***********************************************************************/ |
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64 /* viterbi_exec() */ |
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65 /* ************** */ |
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66 /* Execution of the Viterbi decoder */ |
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67 /* */ |
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68 /* input variables: */ |
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69 /* inputword Vector with gross bits */ |
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70 /* length_input Number of valid gross bits in vector inputword.*/ |
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71 /* length_input must be an integer multiple of */ |
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72 /* CHC_RATE */ |
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73 /* */ |
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74 /* output variables: */ |
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75 /* out Vector with the decoded net bits. The net bits */ |
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76 /* are either 0 or 1. */ |
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77 /* *num_valid_out_bits Number of valid bits in vector out */ |
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78 /* */ |
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79 /* input/output variables: */ |
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80 /* *viterbi_state State variable of the decoder */ |
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81 /* */ |
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82 /***********************************************************************/ |
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83 |
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84 void viterbi_exec(WORD16* inputword, WORD16 length_input, |
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85 WORD16* out, WORD16* num_valid_out_bits, |
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86 viterbi_t* viterbi_state); |
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87 |
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88 #endif |