分组交织
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研究结果还表明:采用内分组交织可以有效地抵抗Ka频段卫星通信信道的非频率选择性慢衰落。
The studies also show that simple block interleaving is very effective in combating the slow frequency nonselective fading of Ka band .
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本系统中,发射端对数字信号采用了RS编码、卷积编码和分组交织级联的纠错编码,因此,基带接收机需要对接收到的数据进行解交织、卷积译码及RS译码。
In this system , the transmitter uses RS encoding , convolutional encoding and block interleaving cascade of error correction coding . Therefore , the baseband receiver has to finish the de-interleaving , convolutional decoding , and RS decoding , correspondingly .
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在简单介绍两种常用交织器的基础上,给出了随机分组交织器的设计,并进行了计算机仿真。
On the basis of introduction to two interleavers , a new interleaver named random block interleaver is designed and simulated .
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在此基础上,结合分组交织器和半随机交织器的原理,提出了一种组合交织器的设计方案。
Based on that , combining the criteria with the theory of block interleaver and semi-random interleaver , a design scheme of combined interleaver was introduced .
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在数据发送时,算法采用分组交织思想分散数据包;在数据接收时,利用机会网络中传输数据自相关性强的特点,用插值法恢复丢失的数据。
While sending data , algorithm can disperse data packets through the thought of interweaving transport , while receiving data , because data in opportunistic networks have a trait of autocorrelation , by using interpolation the lost data can be recovered .
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针对常用交织器的不足,提出一种基于交织矩阵行列循环移位的改进型分组交织器的设计方法,并对改进型分组交织器进行了性能仿真。
According to the insufficient of common interleavers , this paper puts forward an improved design method of block interleaver which is based on random cycle shift interweave matrix ranks , and carrys out the performance of improved block interleaver in simulation .
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分组、随机交织器相关系数仿真分析
Analysis of relative coefficients of interleavers using turbo codes
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基于卷积面向分组Turbo码的交织器研究
Group Statistics A Study on Interleaver for Convolution-Based Block-Oriented Turbo Codes