alamouti 中文意思是什麼
alamouti
解釋
阿拉穆蒂-
First we introduce it by presenting the classic 2tx scheme proposed by alamouti. then the orthognal designes for space - time block codes are explored, the detailed analysis of the performance is presented. the link level simulations are performed in the last part
通過alamouti的2天線方案來理解空時分組碼，接著研究了空時分組碼的正交設計，最後對其性能進行了詳盡的分析，並完成了鏈路級模擬。 -
In term of the orthogonal property of alamouti scheme and the character of the ofdm system equivalent model expression of receiver signal for stbc - ofdm system was obtained by flexible transform method so that the inverse of matrix was avoided using direct - decision mode and the complexity of computation and receiver was decreased. the simulation results show the validity and efficiency of the proposed receiver. ( 6 ) an adaptive equalization algorithm used in space - time block coded ofdm ( stbc - ofdm ) system with alamou
該演算法充分利用了alamouti編碼的正交特性和多發射天線ofdm系統特點，通過靈活的變換對接收信號進行等價的表示；通過對11矩陣求逆的研究，將塊最小二乘遞推演算法（ brl ）中的zkxzk的矩陣求逆分解為k個2x2矩陣的求逆，從而降低了自適應演算法的運算量和接收機的復雜度。 -
At the same time, a simple channel estimator that can suppress the peak - to - average power ratio ( papr ) for ofdm system with multiple transmitter antennas is proposed, its simulation proves again the result. ( 5 ) ofdm receiver is proposed with multiple transmitter antenna and alamouti scheme
結果表明，多個獨立天線ofdm系統的性能明顯優于單天線的ofdm系統；同時還給出了一種簡單的能有效抑制峰值功率平均功率比（ papr ）且適于多發射天線ofdm系統的導頻符號輔助的通道估計方法，模擬結果再次證明了上述結論。 -
Space time coding was proposed by combining transmit diversity and coding technology to improve the system performance, such as error bit rate, data rate, and system capacity. in particular, space - time block coding ( stbc ) schemes, proposed originally by alamouti were adopted by the 3g standardization committees as one key technique in 3g wireless systems
將發送分集與編碼調制技術相結合，進一步產生了空時編碼技術，由於空時編碼技術具有優異的抗衰落性能，並且能通過發送分集和接收分集提供高速率、高質量的數據傳輸，因此它已經成為第三代移動通信技術的重要組成部分，並將繼續在下一代移動通信技術的發展中發揮重要作用。 -
This thesis introduces the concept of qosmecs and proposes a new method to construct the square - matrix embeddable space - time block codes matrices based on the works of tarokh, alamouti and jafakhani etc. comparing to the previous works, the construction formulas presented here are much simple with the same performance of the matrices constructed
本文基於tarokh 、 alamouti和jafakhani等人的研究成果，引入了準正交方陣嵌入碼的概念，提出了一種新穎的方陣嵌入空時分組碼的設計方法。在生成同樣性能碼矩陣的情況下，本文提出的構造公式與已有設計方法相比要簡單得多。
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