Also , the low complexity decoding algorithm for space - time block code ( stbc ) is emphasized and studied as well , which can make it convenient for practical applications 此外,为了便于空时分组码的应用和实现,本文着重研究了空时分组码的低复杂度译码算法。
The performance merit of the proposed block code is confirmed by simulation results and compared with other space - time block codes in terms of average bit error probability 对新得到的分组码的性能进行了仿真，并与其他空时分组码就平均误比特率做了比较，证实了其性能的优越性。
Engineer puppet intractable clown , a : clowns from the fist time block , a block to the final , appeared button after button that point , the final clown beat him when masked face 木偶战记之难缠的小丑1 ：小丑出拳头时挡，挡到最后一个时，出现按扭后点那个按纽，最后那个小丑蒙脸时打他脸。
It has been one of the hottest research topics in recent years , this thesis mostly researches the up - link capacity of cdma system , and space - time block coding technology which can increase the down - link capacity 本文主要研究了cdma系统反向链路的容量以及可以提高前向链路容量的空时编码技术。
Necessary condition for symbol transmit rate in which maximum diversity and channel capacity of linear space - time code are attained is given and a new systematic space - time block code design framework is proposed 摘要给出了线性空时码同时能达到最大分集度和信道容量的符号传输率必须满足的条件。
But for the same reason , it have n ' t the same diversity feature as space - time block code , as well as it have n ' t the same error correction capability as convolutional code or trellis code modulation 由于空时格码兼顾了分集和信道编码，导致其分集特性不如空时分组码，纠错能力不如卷积码和格形编码调制。
Space - time block code use linear combination to combine the modulo of received signal vectors from different antenna to obtain the same performance as receive diversity . while the space - time trellis code directly combine the received 空时分组码通过线性组合，可以把多根天线上的接收信号矢量的模相加，得到与接收分集相同的效果。
With this inner concatenated codes , the performance of ber ( bit error ratio ) and system capacity can be controlled by adjusting the dimension of stbc ( space - time block codes ) in the inner concatenated codes according to the channel parameters 这种编码方式可以在既定的发射天线数下，根据信道环境的优劣，通过调整内接码中空时分组码维数来控制系统误码率性能和系统容量。
Space - time block coding is a new technique that combines coding , modulation and transmit diversity . it has been an ideal candidate for improving wireless communication performance and increasing data rates in systems with bandwidth constraints 空时分组编码是将编码、调制和发射分集技术结合起来的一种新兴技术，它是改善无线通信性能、提高带限系统数据速率的一种理想的选择。
At first , significance of research , key technique and the development status of stbc is introduced briefly . next , basic principles and capacity of mimo , the theory of space - time block codec are presented in detail ; two examples for decoding are enumerated 其次,介绍了mimo技术及其信道容量和空时编码的基本概念和分类;并详细叙述了空时分组码的编译码原理,其中译码给出了两种实例的分析。
