concatenated convolutional codes造句
例句与造句
- hybrid concatenated convolutional coded modulation ( hctcm ) is studied . performance bound and design criteria of hctcm are given
研究了混合级联卷积编码调制，得到了它的性能限和设计准则。 - in chapter 3, encoder structure and decoder structure and decoding algorithms of hybrid concatenated convolutional code ( hccc ) is studied
第三章研究了混合级联卷积编码的编译码结构、性能限和设计准则。 - with the developments of the concatenated codes and turbo codes reviewed, the serially concatenated convolutional codes that are the serial counterpart of the turbo codes are introduced firstly in this paper
本文在对级联码发展历史和turbo码简要介绍的基础上，着重研究了串行级联卷积码(sccc)和串行级联网格编码调制(sctcm)的编译码方法、纠错性能和设计原则。 - in the first part of this thesis, the iterative process structure which is based on the extrinsic information exchange between the siso ( soft in soft out ) component decoders of pccc ( parallel concatenated convolutional codes ) is discussed
首先以并行级联卷积码(pccc)为对象详细的讨论了分量码的软输入软输出(siso)算法和在此基础上基于外信息交换的迭代解码算法。 - in chapter 1, a survey of ccc and stc, including their development is presented . in chapter 2, encoder structure, decoder structure and interleaver of parallel concatenated convolutional code ( pccc ) and serially concatenated convolutional code ( sccc ) are studied . symbol-wise siso algorithm and bit-wise siso algorithm are given
在第二章中，系统分析了并行级联卷积编码和串行级联卷积编码的编码结构、交织器的类型、译码结构以及基于符号和基于比特的siso算法。 - It's difficult to find concatenated convolutional codes in a sentence. 用concatenated convolutional codes造句挺难的
- in chapter 1, a survey of ccc and stc, including their development is presented . in chapter 2, encoder structure, decoder structure and interleaver of parallel concatenated convolutional code ( pccc ) and serially concatenated convolutional code ( sccc ) are studied . symbol-wise siso algorithm and bit-wise siso algorithm are given
在第二章中，系统分析了并行级联卷积编码和串行级联卷积编码的编码结构、交织器的类型、译码结构以及基于符号和基于比特的siso算法。 - turbo codes represent the new code structures, which consist of pccc ( parallel serially convolutional code ) and sccc ( serially concatenated convolutional code ) . in this paper, the background of turbo codes are firstly introduced, which includes the base principle of error correction code 、 block code and convolutional code; the principle of turbo code and the iterative decoding is secondly expanded; the key decoding algorithm : a revised map algorithm and iterative decoding theory are detailed; then, a new turbo code structure : hccc ( hybrid concatenated convolutional code ) is presented, and the capacity of this code method is analyzed, the average capacity upper bound is derived; at last, this code is simulated on awgn ( additive white gaussian noise ) channel and rayleigh fading channel
本文首先介绍了turbo码的背景知识，包括差错控制的基本原理、分组码和卷积码；然后阐述了turbo码的基本原理，包括turbo编译码器结构及迭代译码原理；较为详细地描述了关键的译码算法：?种改进的最大后验概率(map)译码算法及迭代译码算法；提出了一种新的turbo码结构：混合turbo码(混合级联卷积码)；并用编码性能联合界分析方法对混合turbo码进行了性能分析，得出了其平均性能上界；并在高斯白噪声信道和瑞利衰落信道上分别作了一些应用研究及计算机仿真实验。 - turbo codes represent the new code structures, which consist of pccc ( parallel serially convolutional code ) and sccc ( serially concatenated convolutional code ) . in this paper, the background of turbo codes are firstly introduced, which includes the base principle of error correction code 、 block code and convolutional code; the principle of turbo code and the iterative decoding is secondly expanded; the key decoding algorithm : a revised map algorithm and iterative decoding theory are detailed; then, a new turbo code structure : hccc ( hybrid concatenated convolutional code ) is presented, and the capacity of this code method is analyzed, the average capacity upper bound is derived; at last, this code is simulated on awgn ( additive white gaussian noise ) channel and rayleigh fading channel
本文首先介绍了turbo码的背景知识，包括差错控制的基本原理、分组码和卷积码；然后阐述了turbo码的基本原理，包括turbo编译码器结构及迭代译码原理；较为详细地描述了关键的译码算法：?种改进的最大后验概率(map)译码算法及迭代译码算法；提出了一种新的turbo码结构：混合turbo码(混合级联卷积码)；并用编码性能联合界分析方法对混合turbo码进行了性能分析，得出了其平均性能上界；并在高斯白噪声信道和瑞利衰落信道上分别作了一些应用研究及计算机仿真实验。 - concatenated convolutional coding ( ccc ) is key technology in channel coding, which can provide near shannon bound performance . space-time coding ( stc ) combines signal processing at receiver with coding techniques appropriate to multiple transmit antenna and provides significant gain . this dissertation examines concatenated convolutional coding and space-time coding
级联卷积编码是目前信道编码领域研究的热点，它能够提供接近shannon极限的性能；而空时编码将多个发射天线的编码技术和接收端的信号处理结合在一起，能够得到很高的增益。 - concatenated convolutional coding ( ccc ) is key technology in channel coding, which can provide near shannon bound performance . space-time coding ( stc ) combines signal processing at receiver with coding techniques appropriate to multiple transmit antenna and provides significant gain . this dissertation examines concatenated convolutional coding and space-time coding
级联卷积编码是目前信道编码领域研究的热点，它能够提供接近shannon极限的性能；而空时编码将多个发射天线的编码技术和接收端的信号处理结合在一起，能够得到很高的增益。