/*
**************************************************************************************************************
*description:
*???Convolution?encodingdecoding?and?BER?calculating（hard?decisioncode?rate?1/2constraint?length?3-8arbitrary?generate?sequence）
*
*time:
*???2018.10.9
*
*???2018.11.17
*???revise?Gaussian?function（old?function?has?error）
**************************************************************************************************************
*/


#include?“convolution_code.h“


int?main（）
{
????int?ijkq;?????????????????????????????????????????????????????????????????????//loop?variable
????int?temp;
????FILE?*?fp;???????????????????????????????????????????????????????????????????????//file?pointer
????fp?=?fopen（“err_rate.txt““w“）;??????????????????????????????????????????????????//create?or?open?file
????int?frame?=?5000;????????????????????????????????????????????????????????????????//frame?number
????float?err_rate[RANGE]err_bit?=?0;???????????????????????????????????????????????//error?bits?numberserror?rates?in?different?EbN0
????srand（time（NULL））;???????????????????????????????????????????????????????????????//random?seed
????initial_set（）;???????????????????????????????????????????????????????????????????//set?constrain?length?and?generate?sequence
????state_transition（）;??????????????????????????????????????????????????????????????//Calculating?state?transition?diagram
????setEbN0（）;???????????????????????????????????????????????????????????????????????//set?EbN0

????//generate?state?contrast?decoder?table
????for（i?=?0;i?????{
????????temp?=?（i?+?state_num）/2;
????????compare_table[i/2][i]?=?0;
????????compare_table[temp][i]?=?1;
????}

????//different?EbN0
????for（j?=?0;j?????{
????????//repeat?frame?times
????????for（k?=?0;k?ame;k++）
????????{
????????????binaryrand（binary_array）;???????????????????????????????????????????????//generate?binary?sequence
????????????convcode（binary_arraygen_seq1conv_out1）;??????????????????????????????//carry?out?convolution
????????????convcode（binary_arraygen_seq2conv_out2）;??????????????????????????????//carry?out?convolution
????????????mergeconv（conv_out1conv_out2conv_out）;????????????????????????????????//merge?data

????????????//BPSK?modulation?and?generate?Gaussian?noise
????????????for（i?=?0;i?????????????{
????????????????if（conv_out[i]?==?0）????????????????????????????????????????????????//BPSK?modulation
????????????????????conv_out[i]?=?-1;
????????????????gaussian[i]?=?1/sqrt（2）*gaussianrand（）;?????????????????????????????//Gaussian?noise
????????????????gauss_out[i]?=?conv_out[i]?+?pow（10-EcN0[j]/20.0）*gaussian[i];?????//BPSK?modulation?with?noise
????????????}

????????????hard_decision（gauss_out）;???????????????????????????????????????????????//hard?decision

????????????for（i?=?0;i?????

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-06-27?11:07??cc_code_comparetable_hard\
?????目錄???????????0??2019-06-27?11:07??cc_code_comparetable_hard\bin\
?????目錄???????????0??2019-06-27?11:07??cc_code_comparetable_hard\bin\Debug\
?????文件???????44876??2018-11-17?14:48??cc_code_comparetable_hard\bin\Debug\cc_code.exe
?????文件????????1116??2018-10-10?22:39??cc_code_comparetable_hard\cc_code.cbp
?????文件?????????934??2018-10-15?22:25??cc_code_comparetable_hard\cc_code.depend
?????文件?????????552??2018-11-17?14:48??cc_code_comparetable_hard\cc_code.layout
?????文件????????2876??2018-10-15?18:29??cc_code_comparetable_hard\convolution_code.h
?????文件???????????0??2018-10-15?22:25??cc_code_comparetable_hard\err_rate.txt
?????文件???????17226??2018-11-17?14:48??cc_code_comparetable_hard\main.c
?????目錄???????????0??2019-06-27?11:07??cc_code_comparetable_hard\obj\
?????目錄???????????0??2019-06-27?11:07??cc_code_comparetable_hard\obj\Debug\
?????文件???????17321??2018-11-17?14:48??cc_code_comparetable_hard\obj\Debug\main.o