Description: turbo码系统的仿真，包括编码、交织、不同译码、穿孔等各个部分的程序。仿真结果在图中表现。译码算法为log-map。-turbo code system simulation, including encoding, interleaving, different decoder, such as perforation of part of the process. Simulation results are shown in Fig. Decoding algorithm for log-map. Platform: |
Size: 28672 |
Author:赵欣 |
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Description: 包括turbo码编译码程序，译码算法包括sova及max-log-map算法，并有完整链路验证其性能。-including turbo coding- decoding procedures, SOVA including decoding algorithm and max-log-map algorithm, and link integrity test its performance. Platform: |
Size: 13312 |
Author:tanbo |
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Description: 采用 DVB反向链路（DVB-RCS）标准中的双二元Turbo码matlab仿真程序和仿真结果。支持1/2和1/3码率。支持MAP，LOG-MAP解码算法。-The use of DVB reverse link (DVB-RCS) standard double-binary Turbo code matlab simulation program and simulation results. Support for 1/2 and 1/3 rate. Support MAP, LOG-MAP decoding algorithm. Platform: |
Size: 48128 |
Author:李明 |
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Description: 基于DSP平台实现turbo码Max_Log_MAP算法，基于标准C 语言研究
了Turbo 码Max - Log - MAP 译码算法的软件编程与实现,为了提高程序的运行效率,结合TMS320C6000 系列DSP 芯片
的结构与特点采用循环展开、数据的存取优化设计、算法改进等措施进行了代码优化,给出了测试结果，非常值得一看-DSP platform based on turbo code Max_Log_MAP algorithm, based on standard C language studied Turbo Code Max- Log- MAP decoding algorithm of the software programming and realize, in order to improve process efficiency, combined with TMS320C6000 DSP chip structure and characteristics of the use of cycle start the design of data access optimization, algorithms and other measures to improve the code optimization, are given the test results, very worth a visit Platform: |
Size: 313344 |
Author:ynhuyong |
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Description: 该代码不仅实现了编码的仿真，还在多种条件下实现了译码的仿真，包括MAP,LOG-MAP,SOVA下的单双滑动窗口。-The code not only to achieve a coding simulation, is also a wide range of conditions to achieve the decoding of the simulation, including MAP, LOG-MAP, SOVA under single-and double-sliding window. Platform: |
Size: 441344 |
Author: |
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Description: 运用Log-Map迭代译码算法实现Turbo码的简化译码，改善了码率，提高译码速度，减小了运算量。-The use of Log-Map iterative decoding algorithm decoding Turbo codes to simplify and improve the bit rate, improve decoding speed and reduce the computational complexity. Platform: |
Size: 118784 |
Author:何天玲 |
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Description: 课程设计两个程序：一：数据帧（程序每帧设置为400bit)在有扰信道传输时，采用Turbo码进行编译码。并仿真Log-MAP译码算法在不同迭代次数下的性能。
二：实现有扰信道中，不同信噪比下，采用MAP译码算法的Turbo码的性能。
以上各主程序均有做比较详细的程序注释
可直接运行turbo_main.m或LogMAP.m，稍等片刻即可观察到仿真结果
-two programs of Curriculum design : a: Data frames (each frame is setted to 400bit per frame) ,under a interferent channel transmission uses Turbo codes and decodes. including simulation of Log-MAP decoding algorithm performance under different number of its iterations.
2: To achieve the simulate the performance of MAP decoding algorithm for Turbo code,with different SNR that is decided by interferent channel.
Above the main program have to do a more detailed program notes
Can be directly run turbo_main.m or LogMAP.m, wait a moment to the simulation results can be observed Platform: |
Size: 346112 |
Author:陈侯海 |
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Description: BCJR算法是在Turbo码的译码中广泛使用的一种重要算法。程序实现了BCJR的具体译码方法。程序是MAP-LOG的实现算法。-BCJR Algorithm for Turbo decoding is widely used in a key algorithm. The specific procedures implemented BCJR decoding method. MAP-LOG program is the realization algorithm. Platform: |
Size: 1024 |
Author:jack |
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Description: 这是一套完整的支持wimax 16e协议CTC的编译码程序，
主程序在demo.c
译码器：tcdecoder.c
编码器：tcencoder.c-/* This program simulates the classical turbo encoding-decoding system on PC.*/
/* It uses parallel concatenated convolutional codes described in Figure 2.9 in Chapter 2.*/
/* Two component RSC (Recursive Systematic Convolutional) encoders are used. */
/* First encoder is terminated with tails bits. (Info+ tail) bits are scrambled and */
/* passed to the second encoder, while second encoder is left open without tail bits. */
/* Random information bits are modulated into+1/-1, and transmitted through an AWGN channel.*/
/* Interleavers are randomly generated for each frame.*/
/* Log-MAP algorithm without quantization or approximation is used.*/
/* By making use of ln(e^x+e^y) = max (x,y)+ ln(1+e^(-abs(x-y))), */
/* the Log-MAP is simplified with a look-up table for the correction term.*/
/* When the approximation ln(e^x+e^y) = max (x,y) is, we have MAX-Log-MAP.*/
/* To set the number of iterations, change the globle variable "DECITER". To set the fr Platform: |
Size: 26624 |
Author:bennytang |
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Description: This script simulates the classical turbo encoding-decoding system.
It simulates parallel concatenated convolutional codes.
Two component rate 1/2 RSC (Recursive Systematic Convolutional) component encoders are assumed.
First encoder is terminated with tails bits. (Info + tail) bits are scrambled and passed to
the second encoder, while second encoder is left open without tail bits of itself.
Random information bits are modulated into +1/-1, and transmitted through a AWGN channel.
Interleavers are randomly generated for each frame.
Log-MAP algorithm without quantization or approximation is used.
By making use of ln(e^x+e^y) = max(x,y) + ln(1+e^(-abs(x-y))),
the Log-MAP can be simplified with a look-up table for the correction function.
If use approximation ln(e^x+e^y) = max(x,y), it becomes MAX-Log-MAP.- This script simulates the classical turbo encoding-decoding system.
It simulates parallel concatenated convolutional codes.
Two component rate 1/2 RSC (Recursive Systematic Convolutional) component encoders are assumed.
First encoder is terminated with tails bits. (Info + tail) bits are scrambled and passed to
the second encoder, while second encoder is left open without tail bits of itself.
Random information bits are modulated into +1/-1, and transmitted through a AWGN channel.
Interleavers are randomly generated for each frame.
Log-MAP algorithm without quantization or approximation is used.
By making use of ln(e^x+e^y) = max(x,y) + ln(1+e^(-abs(x-y))),
the Log-MAP can be simplified with a look-up table for the correction function.
If use approximation ln(e^x+e^y) = max(x,y), it becomes MAX-Log-MAP. Platform: |
Size: 2048 |
Author:yk |
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Description: 自己编写的Turbo码译码程序，采用log-map译码算法，并采用迭代译码。-Turbo code decoding procedures,written by myself, using Log-MAP decoding algorithm, and the use of iterative decoding. Platform: |
Size: 2048 |
Author:单边 |
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Description: Turbo码的编译码器的MATLAB语言仿真程序，包括SOVA译码算法和LOG－MAP译码算法(The MATLAB language simulation program of Turbo code, including SOVA decoding algorithm and log-map decoding algorithm.) Platform: |
Size: 229376 |
Author:a927719458 |
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Search - log map decoding