信道编码方法
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文中提出了三种不同的信源信道编码方法,取得了不错的效果,而后对Turbo编码方法在抗误码编码方面的作用进行了详尽的分析。
Three different source-channel coding mechanisms have been implemented and then the effect of Turbo on error protection has been detailed analyzed .
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并采用RS信道编码方法,对无编码系统在瑞利衰落信道下误码率为10-3时出现的差错平板进行了改善。
The RS channel encoding technique is also employed in the system aiming at the error floor problem in Rayleigh fading channel when the bit error probability is 10 ~ ( - 3 ) .
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因此当Turbo码作为一种新的在低信噪比条件下具有近Shannon理论极限译码性能的信道编码方法提出,它就成为TCM方案的最佳选择。
So when Turbo codes were put forward as a new channel coding method whose performance is close to the Shannon theoretical limit in low SNR , it became the best choice of TCM scheme .
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该方法基于改进的联合卷积软解码以及采用非霍夫曼码的通用可变长码(UVLC),更接近于一般的信源和信道编码方法,并且信源符号集的大小也不受限制。
This technique is more universal because of utilizing the improved convolutional decoding and non-Huffman Universal Variable Length Codes ( UVLC ) .
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数字体全息数据存储中的两种信道编码方法
Two channel - coding methods for digital volume holographic data storage
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一种便于时钟提取的光纤通信信道编码方法
An Optic-fiber Communication Channel Encoder With Easy Extraction of Clock
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文中采用信道编码方法解决毫米波通信中的抗干扰问题。
The paper adopts channel coding technology to solve anti-jamming problem of millimeter communication system .
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分析了所采用的信道编码方法对系统性能的影响,并对系统进行了仿真,仿真结果表明,经过编译码后,系统的性能得到了很大的改善。
The emulate results indicate that the function of the system improves a great deal through compiling coding .
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表示二进制信息的一种信道编码方法。
A coding method of binary information in the channel . The rule of coding is shown in the table .
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本文主要介绍了几种主要的信道编码方法,对其各自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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删除卷积码是卫星通信系统中的一种常用信道编码方法。
This method is suitable for all code rate punctured convolutional codes and practical for information interception and signal analyzing of satellite communication system .
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介绍了目前在多媒体通信系统中提出的一个新思想一联合信源/信道编码方法,以及基于该方法的视频流传输技术。
In this paper , a new idea , joint source / channel coding ( JSCC ), proposed in current multimedia communication systems , is introduced , as well as the video streaming transmission techniques based on JSCC .
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一种应用于数字电视地面广播的信道编码调制方法
A Novel Channel Coding and Modulation Scheme Adopted in the Digital Television Terrestrial Broadcasting
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本文在香农信息论的基础上,介绍了传统的信源压缩编码方法和信道纠错编码方法。
Based on the Shannon information theory , traditional source compression coding and channel error correction coding methods are introduced .
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针对上述这些问题,本文主要做了以下工作:首先,对常用的告警相关性技术进行了分析和比较,给出了一种基于信道编码的方法分析网络设备间的告警相关性;
In allusion to the above problems , the content of this thesis is as follows : Firstly , the common alarm correlation technique is analyzed and compared , then bring forward a method based on channel coding to analyze the correlation between the network device .
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基于Shannon分离原理的信源信道编码分离设计方法往往会导致视频、图像等传输应用的低效率。
Based on Shannon 's separation principle , the separation approach of the source and channel coding often leads to low efficiency especially for image and video transmission .
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结构化的信息被称为语义信息,本文对语义信息的属性作了猜测,扩充了香农(Shannon)的通信模型,说明了利用信息语义信道特性的编码方法为语义信息编码方法。
We name structural information as semantic information . The property of semantic information is conjectured , and Shannon 's communication model is extended . Semantic information coding should utilize the property of semantic information channel .
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提高移动信道可靠性的编码方法和数据通信协议
Selection of Channel Encoding Method and Private Data Communication Protocol for Improving Mobile Channel Reliability
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基于高速业务模型的基本单元&图像,分析研究了多天线多载波技术下信源信道联合编码的方法。
Based on the basic unit of high-speed service model & image , joint source-channel coding is studied in multi-antenna multi-carrier system .
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OFDM结合信道编码和交织等方法在频率选择性信道造成的信道衰落和码间干扰的抑制上,具有很大的优越性。
Furthermore , combined with FEC and interleaving , OFDM shows a high priority in countering the frequency-selective fades and ISI caused by multipath propagation .
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然后,对基于RCPC不等差错保护的信源信道联合编码的设计方法进行了深入的研究。
Then the JSCC scheme based on RCPC unequal error protected is investigated .
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低密度校验(LDPC)码是一种可逼近信道容量的纠错编码方法,具有良好的应用前景,其和积译码方法中所蕴含的迭代原理也被广泛应用于接收机设计,以提高系统的性能。
Low-Density Parity-Check ( LDPC ) codes have been demonstrated to be a kind of capacity approaching error-correcting code , and are finding their promising applications in many fields . The turbo principle in sum-product algorithm is widely used to design the receiver to improve system performance .
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多描述视频编码是一种面向多信道传输的视频编码方法。
MDVC ( Multiple description video coding ) is for multiple channels system .
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该文提出了一种用于提高MPEG-4码流在噪声信道下的抗误码性能的联合信源信道编码方法。
A new robust joint source channel coding method for MPEG-4 video over noisy channel is proposed .
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在分析MPEG-4码流层次结构及其重要性的基础上,提出了一种用于提高MPEG-4码流在噪声信道下的抗误码性能的联合信源信道编码方法。
Based on the analysis of hierarchy and the significant characteristic of MPEG-4 bit stream , a new robust joint source channel coding method for MPEG-4 video over noisy channel is proposed .
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提出一种基于信道预测的无线FGS视频信源信道联合编码的新方法。
In this paper , we proposed a joint source channel coding method based on wireless channel prediction for FGS transmission .
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同时,根据对野外远程无线信道状况的分析,采用了卷积和交织相结合的信道编码方法,将误码率控制在可以接受的范围之内。
On the analysis of wireless channel status , convolution and interlacement are used for channel coding , to reduce the error rate of data .
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所谓信源信道联合编码,顾名思义就是一种综合考虑信源、信道因素的编码设计方法。
The so-called joint source and channel encoding , as the name suggests , is a encoding scheme with comprehensive consider on the factors of source and channel .
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其中利用联合信源信道编码解决无线图像传输是目前该领域的研究热点之一。本文研究并提出了三种联合信源信道编码方法及对应的解码方法用于无线图象传输。
In this thesis , different integrating schemes of joint source-channel coding and decoding for error resilient image transmission over wirelesss channels are examined .