本发明涉及通信编译码领域的一种联合信源信道译码方法。
The invention relates to a joint source-channel decoding method, belonging to the communication coding and decoding field.
提出了一种基于VLC和LDPC的联合信源信道译码算法。
This paper proposes a joint source-channel decoding based on the VLC and LDPC codes.
结合低密度奇偶校验码进行信道编码纠错，提高了信道译码性能。
The channel decoding performance is improved with channel encoding error-correcting by using Low Density Parity-check codes (LDPC) codes.
文中提出了信道译码硬件实现的一种方案，解决了其中删节码的解码和Viterbi译码后同步等难题。
This paper introduces a method of hardware implementation in channel decoding, giving an emphasis on the decoding of punctured code and synchronization module following Viterbi decoder.
迭代译码思想和基于概率的软译码方法改变了信道编码技术的研究思想。
Iterative decoding thoughts and soft decoding methods based on probability changed the study perspective of channel codes.
分析了信道编译码方法、交织与解交织及DMT调制与解调等关键技术。
The error correcting and decoding, interleave and and DMT modulation and demodulation are analyzed in detail.
该算法特别适用于干扰严重的组合信道中级连r S码的译码。
This algorithm serves particularly for decoding of the concatenated RS codes in combinatory channel with serious disturbance.
作为MAP译码算法的必要参数，信噪比通常通过信道估计单元得到。
As a necessary input parameter for MAP decoding algorithm, SNR was normally obtained from the channel estimation unit.
模拟结果显示，分组码采用网格译码，可为移动衰落信道带来显著的性能改善。
Results show that system performance is greatly improved when this trellis decoding method of block codes is adopted.
新算法较传统方案，在信道估计和空时译码过程中引入收发天线相关参数，消除了天线互扰对接收性能的影响，提高了传输性能。
Comparing with the traditional algorithms, antenna correlated parameters are introduced in channel estimation and the process of decoding, and transmission performance is improved.
这些参数主要包括分量码、交织长度和交织器类型、迭代译码算法和译码迭代次数、编码速率以及信道条件等。
The parameters include generator polynomial of component codes, interleave length and the type of interleavers, iterative decoding algorithms and iteration number, code rates and channel models et al.
论证了软判决译码对短波信道性能的改善，给出几种复杂程度较低的实用软判决编译码方案。
The soft judgment decoding which improves the features of short wave channels is elaborated. Several less complicated practical soft judgment decoding schemes are given.
通过仿真表明，这种低复杂度的TTCM迭代均衡译码系统的性能可接近于高斯信道下ttcm系统的性能。
Computer simulation results show that the novel low-complexity receiver on the fading channel can achieve comparable performance with TTCM on the Gaussian channel with coding.
在调制信号前采用数据预编码，对接收信号进行相应译码，以消除信道中噪声引起的差错传播。
Error propagation caused by noise can be avoided by precoding the data at the transmitter prior to modulation and decoding operation of received signals.
分析了数字视频信号MPEG2的帧结构、信道编译码方法、交织与解交织及64QAM调制与解调等关键技术。
The MPEG2 frame structure, error correcting encoding and decoding, interleave and deinterleave, and64 QAM modem are analyzed in detail.
在维特比译码器译码时，应用信道状态信息(CSI)，可以明显提高系统性能。
The performance can be improved greatly by using the channel state information (CSI) in Viterbi decoder.
经过仿真发现，方案一虽然能在很大程度上缩短估计时间，但可靠性受到信道条件和译码深度的限制；
The simulation results showed that the estimate-time of Solution I was reduced remarkably, but the reliability of estimation was limited by the channel condition and the decode-depth;
介绍了球译码算法的工作原理，给出了算法流程；研究结果表明AWGN信道下LAS-CDMA系统使用16QAM调制时，球译码算法差错率趋近于使用基于ML算法的理论差错概率。
The result presents that when LAS-CDMA system using 16QAM modulation under AWGN channel, the error probability of sphere decoding goes to theory error probability of ML algorithm.
第三代移动通信系统的关键技术包括高效信道编译码技术、软件无线电技术、智能天线技术、多用检测和干扰消除技术等。
The third Generation mobile communication system includes highly effective channel encoding-decoding, software radio, smart antenna, multi-user detection and interference cancellation etc.
在联合信源信道迭代译码器中，信源变长译码采用基于麻花辫网格的低复杂度变长译码算法进行译码。
In a joint source-channel iterative decoder, the source variable length decoding adopts the lower complexity variable length decoding algorithm based on the twist braid grid to decode.
在现代数字通信系统中信道编译码技术已经成为通信系统保证信息传输可靠性的重要手段之一。
In the modern digital communication system, error control coding is an important technique to guarantee the reliable message transmission over noisy channel.
匙孔信道的研究目前还处于初级阶段，现介绍了匙孔信道的空时格形码的编译码技术，就其性能特点做简略的分析介绍，并给出了一些结论。
The current research interests in the paper are space-time encoding techniques for keyhole channels and the performance of space-time trellis codes. And some results have been gi...
应用本发明能够针对BE C信道进行LDPC码的纠删译码，提高了对BED信号传输数据的的纠错能力。
Use of an embodiment of the present invention allows LDPC code erasure decoding aimed at the BEC, and increases the error correcting capability for BED signal transmitted data.
介绍了几种主要的信道编码、译码原理 ，分析了他们的实现方法和性能 ，并对各种编码的优缺点进行了总结。
This article introduced the Channel Codes, and discussed the advantage and disadvantage of different types of Channel Codes.
介绍了几种主要的信道编码、译码原理 ，分析了他们的实现方法和性能 ，并对各种编码的优缺点进行了总结。
This article introduced the Channel Codes, and discussed the advantage and disadvantage of different types of Channel Codes.
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