1) layered space-time code
分层空时码
1.
This paper describes the principles of three kinds of common space-time coding techniques,focusing on the layered space-time codes,the space time trellis code and space-time block codes,which are common in space-time coding schemes,at last,makes a comparison of the three coding schemes.
介绍常见的三种空时编码技术的相关原理,重点介绍了分层空时码、空时格形码、空时分组码三种常见的空时编码方案,最后对三种编码方案的优劣进行总结比较。
2.
In this paper, by combining the subspace method with layered space-time codes, we propose a vertical layered space-time code and accomplish the channel estimation without the training symbols.
对垂直分层空时码系统进行信道估计时,常需采用训练序列,发射天线个数的增加会使得所需的训练符号个数增加,减少了传输数据的有效时间。
3.
The coding principles for layered space-time code, space-time lattice code, and space-time block code are introduced, their advantages and disadvantages are compared, and the design criteria for space-time lattice code are given.
空时编码技术是抗信道衰落和提高系统容量的一种最新编码方法,介绍了分层空时码、空时格型码和空时分组码的编译码原理,比较了它们的优缺点,并给出了空时格型码的设计准则,最后分析了空时编码的研究动态。
2) BLAST
[英][blɑ:st] [美][blæst]
分层空时码
1.
In this paper,we introduce the characteristics of STBC and BLAST to repel channel fading and improve system capacity on tramsitting diversity and do analyzing on performace.
主要介绍了发射分集技术中用于抗信道衰落和提高系统容量的空时分组码和分层空时码的原理和基本特点,并对这些空时编码技术进行了性能分析。
2.
To overcome the bad performance in combating fading of BLAST and low code rate of STBC,a layered structure STBC is introduced in this article by combining BLAST and STBC.
结合了分层空时码和空时分组码的各自优点,并针对BLAST抗衰落性能差以及STBC编码速率不高,可能达不到一定的频谱效益的特点,研究了一种分层结构的空时分组编码方法。
3.
Space-time codes can be divided into tree mainly parts: Bell Layered Space-Time Architecture(BLAST), Space-Time Trellis Codes(STTC) and Space-Time Block Codes(STBC).
空时编码主要分为三种:分层空时码(BLAST)、空时格码(STTC)和空时块码(STBC)。
4) layered space-time codes
分层空时码
1.
An improved detection algorithm of layered space-time codes;
一种改进的分层空时码检测算法
5) VBLAST
分层空时码
1.
A new STBC-VBLAST scheme which combined STBC(Space-Time Block Coding) system and BLAST(Bell Layered Space-Time Architecture)system,can enhance the performance by using the advantage of both system.
空时分组码和分层空时码相结合的STBC-VBLAST系统,能够利用两者的优点提高系统的性能。
6) L-STBC
分层空时分组码
1.
An Application of L-STBC-OFDM in HF Communications;
分层空时分组码结合OFDM系统在短波通信中的应用
补充资料:HP-241B色带打码机/HP-30手动打码机
适用材料:
塑料薄膜PT、PE、PVC、OPP、KT、铝箔、饮料瓶商标;各种塑料复合材料、塑料袋、纸(不干胶、卡片)、皮革、布;包装容器袋、塑料制品;电子元件外壳。
工作原理及结构特点:
采用热打印带代替油墨打印,采取特殊的活字装卸换字结构,可在任何软包装材料上打印。印字清晰,不易擦掉;卫生干净,无油墨污染之优,是一种经济卫生的打印方式。
HP-241技术参数:
最高速度:70-120次/分 可调
打印间距:任意
打印行数:1-3行
电 压:220V±10% 50Hz
功 率:200W
热打印带宽度:25-35mm
HP-30技术参数:
电 源:220V/50Hz
功 率:≤40W
尺 寸:225×200×155mm
重 量:2.5kg
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条