This paper presents a RAKE-based STBC scheme used in multi-path fading environment.
文章在多径信道下，提出了一种基于RAKE接收机的空时分组编码(STBC)方案。
The STBC uses Maximum Likelihood (ML) decoding and its complexity of decoding is very low.
空时分组码采用最大似然译码，译码复杂度相对较低。
Using this new scheme, higher diversity order and coding gain can be achieved than STBC at the same coding rate.
这种编码在相同的码速率下，实现了比stbc更大的分集度和更高的编码增益。
Then the encoding and decoding theories, features and performances of STBC and STTC are detailed in all aspects.
然后对网格空时码（STTC）和分组空时码（STBC）的编译码原理、特点和性能进行了全面的分析；
A novel concurrent selective mapping (SLM) algorithm with space-time block coded (STBC) was proposed to solve this problem.
针对此问题，提出了一种新的基于空时分组码(STBC)的并行选择映射算法。
However, STBC only shows diversity gain but free of coding gain. Consequently, the error capacity of an STBC design is limited.
但是，空时分组编码只具有分集增益而缺乏编码增益，这使其在纠错能力上大为逊色。
Space-time coding includes space-time trellis coding (STTC), layered space-time coding (LSTC) and space-time block coding (STBC).
空时编码包括三种：空时网格编码(STTC)、空时分层编码(LST)和空时分组编码(STBC)。
The VBLAST can be used to exploit the capacity potential provided by multiple transmit antenna systems. The STBC has higher diversity gain.
VBLAST可以有效提高多发射天线系统容量，而STBC则具有较高的分集增益，通过将两种方案结合起来组成一个新的系统。
But the data efficiency of STBC is restricted to orthogonal transmission and the bit error rate of BLAST is high due to the error propagation.
但由于空时分组码受正交条件限制，传输效率得不到提高，而BLAST系统存在差错传播制约着误码率的下降。
Finally, STBC is applied to MIMO-OFDM systems, and the simulation model is built. The performance in multiple simulation condition is researched.
最后，将空时分组码应用于MIMO - OFDM系统中，建立了STBC - OFDM的仿真模型，研究了在多种仿真条件下MIMO - OFDM系统的性能。
With partial channel state information at the transmitter, a novel transmitter based on the optimal weight matrix is proposed in MIMO-STBC system.
在发射机获得部分下行信道信息的情况下，提出了一种基于最佳权矩阵的MIMO -STBC发射机。
Simulation results show that the performance of this method approaches that of the STBC-OFDM with cyclic prefix even if the number of iteration is very small.
仿真结果显示，该方法在迭代次数很小时性能便可接近带有循环前缀的STBC - OFDM系统。
In order to evaluate the reliability of STBC, we set single and double-screen examination parameters by imitating TNO, and 65 subjects be tested by STBC and TNO.
仿照TNO随机点立体图设置单屏及双屏检查参数，检查临床测试组65人，并与TNO检查结果进行比较。
To improve the channel capacity, a new Alamouti space-time block coding (STBC) multiple-input multiple-output (MIMO) system was employed for underwater communications.
为了提高水声信道的信道容量，将多输入多输出(MIMO)技术用于水声信道，提出一种基于空时分组编码(STBC)的MIMO通信系统。
To mitigate inter-cell interference in distributed cellular architecture, an inter-cell interference coordination scheme with space time block coding (STBC) is proposed.
针对分布式小区架构的小区间干扰抑制问题，提出了一种结合空时分组码(STBC)的小区间干扰协调策略。
So it is a more wise choice to increase the transmission rate and optimize the time slot block number on the condition of keeping the full diversity order in STBC design.
在保证满分集度的前提下，尽可能提高码率，并优化时延分组数，才是多发射天线构架复信号空时分组码设计的更明智的选择。
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.
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。
Currently studies on the performance of STBC have been relatively comprehensive, so research focus is shifting to optimize code structure and reduce the decoding complexity.
目前对空时分组码的性能研究已经比较全面，研究重点开始转移到优化编码结构和降低译码复杂度等方面。
Due to the performance degradation of subspace-based blind decoding of space-time block codes (STBC) over spatially correlated channels, a revised decoding algorithm was proposed.
针对空时分组码子空间盲解码算法在空间相关信道下性能下降的问题，提出了一种修正解码算法。
But as to the diversity gains, STCM and STBC can achieve the maximum diversity that the system provides, while LST only obtains a small part of it because of its limited application.
但对分集增益而言，网格空时码和分组空时码均可达到系统所能提供的最大分集增益，而分层空时码由于受实现方式的制约，只能得到其中一部分分集增益。
It studied simple transparent boundary condition (STBC) and complete transparent boundary condition (CTBC) used in beam propagation method (BPM) and their effects on calculation accuracy.
研究了束传播算法(BPM)中简单透明边界条件(STBC)和完全透明边界条件(CTBC)两种边界处理算法对计算结果精度的影响。
Simulation result shows that the scheme is valid to suppress directional strong interference for STBC MIMO system although with some performance loss compared with the ideal case of non-interference.
仿真结果表明该方案虽然相对于理想无干扰的系统来说有一定的性能损失，但是能有效抑制空时分组码MIMO系统中的强定向干扰。
Simulation result shows that the scheme is valid to suppress directional strong interference for STBC MIMO system although with some performance loss compared with the ideal case of non-interference.
仿真结果表明该方案虽然相对于理想无干扰的系统来说有一定的性能损失，但是能有效抑制空时分组码MIMO系统中的强定向干扰。
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