1) Differential Unitary Space-Time Modulation(DUSTC)
酉差分空时码(DUSTC)
2) DUSTC
差分酉空时码
1.
Differential unitary space-time code(DUSTC) keeps good performance in rapidly fading channels when neither the transmitter nor the receiver knows the channel state information.
差分酉空时码不需要任何信道状态信息,在通信终端处于高速移动环境下的快变衰落信道中仍能保持较好的性能。
3) Differential Unitary Space-Time
差分酉空时
1.
That is what we called Differential Unitary Space-Time Modulat.
之后,[14]提出了差分酉空时调制(DUSTM)方案,统一了信道状态已知和未知两种情况下的设计准则。
4) unitary space-time code
酉空时码
1.
This paper analyzed the impact of fading correlation on the noncoherent unitary space-time code,deduced the pair-wise error probability(PWEP) and Chernoff bound under fading correlation.
主要分析了空间衰落相关对非相干酉空时码带来的影响,推导了衰落相关条件下酉空时码的成对差错概率及其Chernoff边界。
2.
A decoding algorithm based on the tree-structured constellation design was presented in order to reduce the decoding complexity of unitary space-time codes.
针对酉空时码最大似然检测复杂度高的问题,提出了一种酉空时星座的设计及低复杂度译码方法。
3.
Based on orthogonal space-time block code,a scheme for constructing unitary space-time code is proposed.
提出了一种基于正交空时分组码构造酉空时码的方案,证明了所设计的酉空时码可以获得满分集。
5) unitary space-time codes
酉空时码
1.
Based on cyclic diagonal codes,an improved design of unitary space-time codes(USTC) at low SNR is proposed.
在低信噪比情况下,提出了一种基于循环对角码的改进的酉空时码设计。
2.
A modified decoding algorithm for unitary space-time codes is presented,in which the decoding search is based on the groups classified by the circulant correlation of the signal points in the constellation.
提出了一种改进的酉空时码检测算法,根据星座中信号间的循环相关特性将星座分组,每组中的信号均与该组的中心信号具有较强的相关性。
6) Differential Unitary Space-Time Modulation (DUSTM)
差分酉空时调制
1.
Differential Unitary Space-Time Modulation (DUSTM), which is a multi-antenna modulation technique for time-varying fading channels, can obtain full diversity gains without channel state information at the receiver in slowly fading channels.
差分酉空时调制(DUSTM)是一种应用于时变衰落信道下的多天线调制方法。
2.
Differential Unitary Space-Time Modulation (DUSTM) based on diagonal signals achieves full antenna diversity without requiring channel estimation.
基于对角信号的差分酉空时调制技术不需要信道估计并能实现满天线分集,但接收机的计算复杂度与发射天线数和数据率成指数关系。
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