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- Using the principle of trellis coding, analyses of coding modulation schemes of CCITT recommendations V.32 and V.33 are carried out. 本文用格状编码原理对CCITT(国际电报电话咨询委员会)V.;32和V
- A new model for speech compression was proposed based on adaptive predictive trellis coding quantization (APTCQ) algorithm. 摘要提出了一种新的基于自适应预测栅格编码量化算法的话音压缩模型。
- Iterative multi-user detection of trellis code multiple access using a posteriori probabilities. 关于多用户检测的一篇好文章,希望大家有用。
- We review the structures of trellis codes with a delay processor and space-time coding in chapter 2. 我们在第二章中回顾具延迟处理器的篱栅码与空时码架构。
- It jointly uses the space-time trellis codes (STTC) and the space-time block codes (STBC) to achieve higher coding gain. 该技术采用子载波分组与线性预编码方案,通过适当的子载波分组,可以保证系统获得最大的分集增益,并使系统编译码的的复杂程度大为降低;
- Thirdly, we analyzed and compared three types of space-time coding technologies that are space-time block code (STBC), Layered space-time code (LSTC) and space-time trellis code (STTC) respectively. 接着介绍比较了空时分组码、分层空时码以及空时格型码这三种空时编码技术的研究概况。
- Eigen-beamforming(EBF)technique and trellis coded modulation(TCM)concatenated with space time block code(STBC)are used to achieve code gain and diversity gain. 应用空时分组码特征波束成型技术和格形编码调制(TCM)来获得分集增益和编码增益。
- In this paper,a new trellis coded watermarking algorithm of trellis codes combine with constant robustness embedding is proposed. 将网格编码技术与固定鲁棒性嵌入相结合提出了一种新的网格编码水印算法。
- Finally the future applications of space-time block codes (STBC), layered space-time codes (LSTC) and space-time trellis codes (STTC) are outlined. 最后对分组空时码、分层空时码、网格空时码进行了比较。
- Speckle Reduction;Image Compression; Wavelet Transform; Median Filter; Quadtree Classification; Trellis Coded Quantization. 01相干斑抑制;图像压缩;中值滤波;小波变换;四叉树分类;网格编码量化
- Space-time trellis codes can provide the best tradeoff between bandwidth efficiency, diversity gain, constellation size and trellis complexity. 摘要空时网格编码能在频带利用率、分集增益、调制方式与编码网格图复杂度之间达到最佳的折衷。
- Key modules in modem are further researched, such as QAM, synchronization technology, AGC, trellis coded modulation, Viterbi Algorithm, adaptive equilazer etc. 研究调制解调器各个模块的相关理论知识,如QAM调制解调、码元同步、载波恢复、自动增益控制、网格编码调制、维特比(Viterbi)译码算法、自适应均衡等算法。
- On the Method of Decoding the Trellis code 格状编码的译码方法的研究
- non-full rank space-time trellis code 非满秩网格空时码
- full rank space-time trellis code 满秩网格空时码
- Super-quasi-orthogonal space-time trellis code 超准正交空时网格码
- Two popular space-time codes, space-time block code (STBC) and space-time trellis code (STTC), are investigated in [1] and [2] for flat fading channels without intersymbol interference. 它可以分成两大类:时空区块编码和时空篱栅编码。
- Three kind of channel encode/decode technologies are researched which are TCM(Trellis Coded Modulation) and Viterbi decode, Reed-Solomn encode/decode and CRC(Cyclic Redundancy Check). 重点研究了ADSL系统的信道差错控制编码技术,包括Viterbi译码、Reed_Solomn译码和CRC校验(循环冗余校验)。
- At last we use the same concept to construct a multilevel trellis coded modulation and space time coded modulation for noncoherent decoding based on QPSK and it can have a good error performance too. 最后,将多层次的概念建构以QPSk做调变,可适用非同调解码的篱栅编码调变与时空编码调变,一样可达到良好的错误效能。
- A data aided symbol timing estimation algorithm was proposed for burst-mode space-time trellis coded multi-level continuous phase modulation(STTC-MCPM) systems in Rayleigh fading channels. 针对瑞利衰落信道中突发模式的空时网格编码的多电平连续相位调制(STTC-MCPM)系统,提出了一种基于数据辅助的符号定时估计算法。