Description: 交织编码是一种信道改造技术，它通过信号设计将一个原来属于突发差错的有记忆信道改造为基本上是独立差错的随机无记忆信道。交织编码作为克服衰落信道中突发性干扰的有效方法，通常和其它用于纠正无记忆独立差错的信道编码相结合构成级联码，广泛应用于当代移动通信。
-Channel interleaved coded is a transformation of technology, which belongs to the original signal design will be a burst error channel with memory is basically a transformation of independent random error channel without memory. Overcome the fading channel interleaved coded as an effective method of sudden disturbance, usually independent of other for no memory error-correcting channel coding concatenated codes combining form, are widely used in modern mobile communications. Platform: |
Size: 3072 |
Author:刘超 |
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Description: Turbo 码的matlab程序。它巧妙地将两个简单分量码通过伪随机交织器并行级联来构造具有伪随机特性的长码，并通过在两个软入/软出(SISO)译码器之间进行多次迭代实现了伪随机译码。他的性能远远超过了其他的编码方式，得到了广泛的关注和发展，并对当今的编码理论和研究方法产生了深远的影响，信道编码学也随之进入了一个新的阶段 -Turbo code matlab program. It skilfully two simple component codes through pseudo-random interleaver parallel concatenated to construct the long code of a pseudo-random characteristics, and through multiple iterations between the two soft in/soft-output (SISO) decoder a pseudo-random decoding. His performance than other encoding, and get a lot of attention and development, and today' s coding theory and research methods had a profound impact, channel coding theory also entered a new phase Platform: |
Size: 60416 |
Author:石大 |
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Description: 通过阐述通信系统的基础理论，着重分析信道理论及信道编码方式，采用蒙特卡罗计算机仿真方法，利用MATLAB 提供的可视化工具Simulink 建立了信道编码的仿真模型，详细讲述了各编码方式的设计。在给定仿真条件下，运行了仿真程序，对二进制双极性通信系统中的几种基本信道编码进行了仿真性能测试和讨论,并从实际角度出发，对扩频通信中的信道编码进行了初步仿真，得出了在二进制双极性扩频通信系统中采用级联码，能够实现信道复用和误码性能双赢的结论。-Elaborate communication system is the basis of the theory focuses on the analysis of channel theory and channel coding way, using Monte Carlo computer simulation method provided by MATLAB visualization tool Simulink established channel coding simulation model, and details about the design of each coded way of . The simulation conditions of the given run a simulation program, several basic channel encoded binary bipolar communication system simulation performance tests and discussion, and from the practical point of view, and channel encoded in a spread spectrum communication Preliminary simulation obtained concatenated codes in binary bipolar spread spectrum communication system, able to achieve a win-win conclusion channel multiplexing and error performance. Platform: |
Size: 195584 |
Author:李腾飞 |
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