sttc 中文意思是什麼
sttc
解釋
空時格形碼-
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 ). in this paper, we mainly compare the performance of blast and stbc in many aspects, such as design criterion, transmission rate, diversity gain, diversity combining, bit error rate and channel capacity etc. in this paper, we first respectively analysed the instantaneous received symbol energy - to - noise ratio of v _ blast in the diversity combining methods of maximal ratio combining ( mrc ), equal gain combing ( egc ) and selective combing ( sc )
Mimo技術核心是空時編碼（ stc ） 。空時編碼主要分為三種:分層空時碼（ blast ） 、空時格碼（ sttc ）和空時塊碼（ stbc ） 。本文主要對分層空時碼和空時塊碼這兩種編碼方式在設計準則、傳輸速率、分集增益、接收合併、比特差錯率和通道容量等方面進行了較為詳盡的研究。 -
Then the performance for sttc in multipath and time - dispersive fading channels is derived. in chapter 5, space - time block coding ( stbc ) is studied
研究了空時格狀編碼在多路徑和時間色散的衰落通道中的性能，得到它的性能限。 -
In chapter 4, space - time trellis coding ( sttc ) is studied. an exact pairwise error probability is derived for space - time codes operating over rayleigh fading channels
在第四章中，研究了空時格狀編碼的問題，推出了誤碼概率的確切表達式。 -
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
空時格形碼在天線數目固定時，譯碼復雜度隨發射速率的增大呈指數增加。 -
However, stbc overcomes the limitation of sttc that its decoding is very complexly. it makes use of ml decoding arithmetic which possesses orthogonal designs
空時分組碼則克服了空時格形碼譯碼過于復雜的缺陷，它利用具有正交設計的最大似然譯碼演算法實現。
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