1) differential space-time coding
差分空时编码
1.
In this technique,double differential space-time coding is introduced into both time domain and frequency domain in an OFDM system.
为了保证在快速双选衰落信道下的有效数据传输,提出了一种新颖的时频双差分空时编码正交频分复用(OFDM)技术。
2.
This thesis studies several techniques in the framework of MIMO, including differential space-time coding, single-carrier f.
本论文研究了MIMO系统中的差分空时编码技术、单载波频域均衡技术、多用户下行链路预编码技术以及用户调度技术。
2) differential space-time-frequency coding
差分空时频编码
3) differential space-time block coding
差分空时分组编码
1.
In this paper,a novel cooperative diversity protocol with distributed differential space-time block coding is presented which can achieve full diversity with full rate with no need of channel state information(CSI).
本文提出了一种采用分布式差分空时分组编码和检测的协同分集方案,在不需要信道状态信息(CSI)的情况下可以实现满分集和全速率发射,并推导了相关瑞利信道下该方案误码率(BER)性能上限的解析表达式。
2.
After discussing the multi-user differential space-time block coding system,and analyzing the realizability of differential decoding method,we can draw the conclusion that the receiver can not decode the information of various users while the channel is unknown if multiple co-channel users in the system are synchronous.
通过分析和推导,指出在多用户差分空时分组编码系统中,发射端的多个共道用户采用同步编码和同步分组传输时,接收端无法在未知信道状态信息的情况下进行差分解码的结论。
3.
In this article,the structure of DSTBC(Differential space-time block coding) combined with OFDM system is .
本文研究了DSTBC(D ifferential Space-Tim e B lockCodes,差分空时分组编码)和OFDM(O rthogonal Frequency D ivisionMu ltip lexing,正交频分复用)技术相结合的系统收发机结构。
4) Layered differential space-time block code
分层结构差分空时分组编码
5) DSTBC
差分空时分组码
1.
The Using of New DSTBC in OFDM Communications System;
差分空时分组码在OFDM系统中应用
2.
The paper introduces the technology of DSTBC first,then studies its application in future high speed VHF/UHF frequency-hopping radios based the characteristics of high speed VHF/UHF frequency-hopping radios.
在简单介绍了差分空时分组码(DSTBC)技术的基础上,结合未来高速超短波跳频电台的发展情况和特点,对DSTBC在未来高速超短波跳频电台中应用的可行性进行了研究和探讨。
3.
In this paper,the principle of coding and decoding for differential space-time block coding(DSTBC) is introduced and the performance of DSTBC technology combined with orthogonal frequency division multiplexing(OFDM) has been researched.
本文介绍了差分空时分组码的编译码原理,研究了采用差分空时分组码的OFDM系统(DSTBC-OFDM)性能,仿真结果表明,DSTBC-OFDM系统的性能随着子载波数及子信道数的增加而提高。
6) differential space-time block code
差分空时分组码
1.
User custom blocks of differential space-time block codes(DSTBC)were designed in SPW on the basis of introducing the principle of DSTBC,and the performance of DSTBC on flat Rayleigh fading channel was simulated in SPW and compared with STBC with perfect channel estimates under same channel conditions.
在介绍了差分空时分组码编译码原理的基础上,将差分空时分组码封装为SPW中的自定义模块,然后在SPW中对差分空时分组码在瑞利平坦衰落信道下的性能进行了仿真,并与相同信道条件下具有理想信道估计的空时分组码的性能进行了比较。
2.
Based on OFDM system, a novel space-frequency-time code which combined trellis-coded modulation with differential space-time block code was proposed.
基于OFDM(正交频分复用)系统,提出了一种新的空频时三维编码,将网格编码调制和差分空时分组码进行组合链接设计。
补充资料：空时
分子式：
CAS号：
性质：又称接触时间或空(间)时(间)。指反应物单程通过催化剂床层(或反应器有效体积)所需经历的时间。它是空(间)速(度)的倒数，其表示式为：τ=V催/V，τ为停留时间，V催为催化剂填装体积，V为反应物气体体积(标准状态)流速。
CAS号：
性质：又称接触时间或空(间)时(间)。指反应物单程通过催化剂床层(或反应器有效体积)所需经历的时间。它是空(间)速(度)的倒数，其表示式为：τ=V催/V，τ为停留时间，V催为催化剂填装体积，V为反应物气体体积(标准状态)流速。
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