STTC

STTC has good performance but high decode complexity .

空时格型编码性能虽好，但译码复杂度高；

Urban Heat Island Analysis Based on CTTC and STTC Models

基于CTTC和STTC模型的城市热岛分析

A new soft decision adaptive decoding algorithm for space time trellis code ( STTC ) is proposed .

本文提出一种针对空时格形码的软判决自适应双向解码算法。

An Encoding and Decoding Scheme for Reducing the Decoding Complexity of STTC

一种降低STTC译码复杂度的编译码方案

The problem of adaptive decoding of space time trellis code ( STTC ) on the mobile wireless channels is considered in this paper .

本文探讨了无线移动信道中空时格形码的一种自适应解码技术。

This paper modifies the Viterbi algorithm used in STTC encoder under the MIMO system , and gives the recursive metric equation .

本文对MIMO系统中用于STTC编码器的VA译码算法进行了改进，建立了节点度量的递推方程，并给出了分枝转移的度量方法。

Compared with the space-time trellis code ( STTC ), the Pre-coding STBC has lower complexity without performance deterioration .

与网格空时码相比，预编码STBC在不损失性能的同时具有更低的编译码复杂度。

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；

An optimization algorithm of STTC ( Space-Time Trellis Cods ) is proposed in this paper , and some better performance codes are introduced .

本文在此基础之上，提出一种基于距离谱的网格空时码优化算法，并给出了一些性能更好的网格空时码编码方案。

In general , STTC has more gain of diversity and coding , but higher code and decode complexity and it is difficult to apply .

一般的，空时网格编码具有较高的分集增益和编码增益，但其编译码复杂度较高，难以付诸应用；

STTC is the combination of TCM and transmission diversity , achieving full diversity gain and high coding gain but with high code searching and decoding complexity .

STTC将网格编码技术（TCM）与发射分集技术相结合，可以获得满分集增益和编码增益，抗衰落性能最优，但STTC好码搜索较困难，译码复杂度也较高。

When the number of the antennae is not changed , the complexity of STTC decoding would increase on index with the acceleration of the transmission rate .

空时格形码在天线数目固定时，译码复杂度随发射速率的增大呈指数增加。

On the base of theory of MIMO channel capacity , we induced the criterion of STTC on slow Rayleigh fading channels and fast Rayleigh fading channels .

在MIMO信道容量理论的基础上，推导了准静态Rayleigh衰落信道和快衰落信道下空时编码的设计准则。

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 pairwise error probability ( PEP ) of space-time trellis codes ( STTC ) was investigated to evaluate the performance of STTC over fading channels .

为获得衰落信道中空时网格码（STTC）的性能估计，对STTC的成对差错概率（PEP）进行了研究。

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）。

After analyzing the maximum likelihood sequence detection ( MLSD ) of STTC transmission burst with no periodically inserted pilot symbols , we show that per survivor processing ( PSP ) can be used to obtain a practical approximated MLSD in this situation .

通过分析无周期间插正交导引信号下空时格形码的最大似然序列检测，指出可利用逐幸存路径处理得到该情形下可实用的最大似然序列检测算法；

Space-time coding mainly includes Space-Time Block Codes ( STBC ), Space-Time Trellis Codes ( STTC ) and Layered Space-Time Codes ( LSTC ) . Based on the radio channel propagation models , the paper introduces several different models and corresponding channel capacities of MIMO systems .

空时编码技术主要包括：空时格码、分层空时码和空时分组码。本文在无线信道传播模型的基础上，首先介绍了MIMO系统的不同模型及信道容量。