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John.Wiley.and.Sons.Essentials.of.Error.Control

于 2021-04-26 发布文件大小:2442KB

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第1章　用于可靠数字传输和存储的编码第2章　代数引论第3章　线性分组码第4章　重要的线性分组吗第5章　循环码第6章　二进制BCH码第7章　非二进制BCH码、RS码及其译码算法第8章　大数逻辑可译码有限几何码第9章　线性分组码的网络第10章　基于可靠性的线性分组码软判决译码算法第11章　卷积码第12章　卷积码的最优译码第13章　卷积码的次优译码第14章　基于网络的软判决译码算法第15章　级联编码、码分解与多阶段译码第16章　Turbo编码　第17章　低密度单奇偶校验码第18章　网络编码调制第19章　分组编码调制第20章　纠突发错误码第21章　纠突发错误卷积码第22章　自动请求重传（ARQ）策略附录A　伽罗华域的表附录B　GF（2m）中元素的最小多项式附录C　长度至2　10-1的二进制本原BCH码的生成多项式 9.6 卷积码 (Error-controlled coding techniques are used to detect and/or correct errors that occur in the message transmission in a digital communications system. Wireless personal channels used by mobile communications systems and storage systems for digital multimedia data all require the implementation of error control coding methods. Demonstrating the role of coding in communication and data storage system design, this text illustrates the correct use of codes and the selection of the right code parameters. Relevant decoding techniques and their implementation are discussed in detail. Providing communication systems engineers and students with guidance in the application of error-control coding, this book emphasizes the fundamental concepts of coding theory while minimising the use of mathematical tools. * Reader-friendly approach ti coding in communication systems providing examples of encoding and decoding, information theory and criteria for code selection * Thorogh descriptions of releva)

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John.Wiley.and.Sons.Essentials.of.Error.Control.Coding.Sep.2006.pdf

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DXF_G_code
DXF轨迹图转G代码，有直线，圆，圆弧，样条曲线，优化多段线，多段线。与下位机串口通讯！无法编译，是因为要先注册mscomm控件(DXF trajectories turn the G-code, line, circle, arc, spline curves to optimize the polyline, polyline. With lower serial communications! Not compile because the first registered mscomm controls)

2020-11-03 08:29:52下载

积分：1
基于matlab实现的循环谱估计算法
说明：基于matlab实现的循环谱估计算法，可以对具有循环平稳特点的信号进行参数估计，如直扩信号和周期调制信号(The cyclic spectrum estimation algorithm based on Matlab can estimate the parameters of signals with cyclostationary characteristics, such as DS-SS signals and periodic modulated signals)

2019-11-19 19:43:45下载

积分：1
OFDM信号频谱感10
说明：前已提出的频谱感知方法主要包括匹配滤波器检测、能量检测、循环平稳特征检测以及多分辨率频谱感知. 这些方法均为单节点感知方法.然而，在阴影和深度衰落情况下，单个节点的感知结果并不可靠，因此，需要对多个节点的感知结果进行融合，以提高检测可靠性，即协作感知技术. 文献采用“或” 准则对各个 CR 感知结果进行融合. 文献则提出了基于 D-S 证据理论的协作频谱感知算法，虽然该算法的性能比“或” 准则或“与”准则要好，但需要存储大量历史信息，算法的计算复杂度也很高. 文献中分析了采用似然比检测(likelihood ratio test， LRT) 的软判决与采用“与” 准则的硬判决的性能，结果表明采用软判决的协作感知性能更优(Previously proposed spectrum sensing methods mainly include matched filter detection, energy detection, cyclostationary feature detection and multi-resolution spectrum sensing. These methods are all single node sensing methods. However, in the case of shadow and deep fading, the sensing results of single node are not reliable, so, It is necessary to fuse the sensing results of multiple nodes to improve the detection reliability, i.e. cooperative sensing technology. In the literature, "or" criterion is used to fuse the CR sensing results. In the literature, a cooperative spectrum sensing algorithm based on D-S evidence theory is proposed. Although the performance of the algorithm is better than "or" criterion or "and" criterion, a large amount of historical information needs to be stored, The computational complexity of the algorithm is also very high. In the literature, the performance of the soft decision based on the likelihood ratio test)

2020-11-19 21:19:37下载

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123
针对MIMO-OFDM系统中期望最大化(EM)信道估计算法在高信噪比(SNR)下带来的误差地板(EF)现象,且OFDM符号的数据传输效率随发射天线数的增加而明显降低,提出一种改进的高效EM信道估计算法。该算法首先引入一种准确的等效信号模型并推导出一种修正的EM算法,改善了EM算法在高SNR下的性能在多个OFDM间利用相位正交导频序列来提高数据传输效率,同时进行联合信道估计以提高估计性能。仿真实验验证了所提算法具有更高的信道估计性能和更高的数据传输效率。(For multiple-input multiple-output with orthogonal frequency division multiplexing(MIMO-OFDM) systems,the error floor(EF) phenomenon at high signal noise rate(SNR) was induced by the expectation maximum(EM) channel estimation algorithm.In addition,the data transmission efficiency was declined obviously with the increasing number of transmit antennas.According to these problems,an improved and efficient EM channel estimation algorithm was pro-posed.Firstly,an accurate and equivalent signal model was introduc...)

2011-09-05 15:20:54下载

积分：1
schx4_13
通信仿真CDMAIS-95码分多址通信系统matlab(Communication simulation CDMAIS-95 code division multiple access communication system matlab)

2013-04-15 10:38:30下载

积分：1
LFMdetection
LFM信号及回波的生成，时域及频谱分析，模糊度函数分析，时频分析，匹配滤波器能量检测、循环相关检测、及fmusic参数估计(LFM signal and the echo generation, time domain and spectral analysis, ambiguity function analysis, time-frequency analysis, the matched filter energy detection, loop correlation detection, parameter estimation and fmusic)

2013-10-28 11:04:45下载

积分：1
dft-sofdm-theoretical-ber-simulation
高斯信道下DFT-S OFDM 理论误码率仿真代码及其仿真结果图(DFT-S OFDM theoretical BER simulation code and simulation results Figure in Gaussian channel )

2013-05-22 11:10:08下载

积分：1
UWB仿真算法
说明：实现UWB仿真，用于实现自动追踪定位，即卡尔曼滤波算法(Implement UWB simulation for automatic tracking and positioning, namely Kalman filter algorithm)

2020-04-22 16:31:23下载

积分：1
数字信号处理实验
数字信号处理相关实验，包括求系统零极点，快速傅里叶变换，长序列卷积，FIR，IIR等。(Digital signal processing related experiments, including zero and pole of the system, fast Fourier transform, long sequence convolution, FIR, IIR and so on)

2018-09-25 09:55:06下载

积分：1
zhaidai
基于matlab软件的窄带干扰抑制及信号去噪代码(Based on the matlab software narrowband interference suppression and signal denoising code)

2020-09-26 20:47:46下载

积分：1

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