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題名 | 差分塊狀時空碼之非同調最大可能性序列偵測器=Noncoherent Maximum-Likelihood Sequence Detector for Differential Space-Time Block Code |
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作者姓名(中文) | 林丁丙; 吳泰徵; 江炳宏; | 書刊名 | 臺北科技大學學報 |
卷期 | 38:1 2005.03[民94.03] |
頁次 | 頁45-54 |
分類號 | 448.82 |
關鍵詞 | 差分塊狀時空碼; 非同調最大可能性序列偵測器; 非同調單擊偵測器; 線性預測決策回授偵測器; 線性預測威特比接受器; 威特比演算法; Differential space-time block code; Noncoherent maxeimum-likelihood sequence detector; Noncoherent one-shot detector; Linearly predictive decision-feedback detector; Linearly predictive viterbi reciver; Viterbi algorithm; |
語文 | 中文(Chinese) |
中文摘要 | 在本篇文章中,對於單載波之兩輸入多輸出差分塊狀時空碼(Differential Space-Time Block Code;DSTBC)系統,我們針對其非同調最大可能性序列偵測器(Noncoherent Maximum-Likelihood Sequence Detector;NSD),及其三種特例:非同調單擊偵測器(Noncoherent One-Shot Detector)、線性預測決策回授偵測器(Linearly Predictive Decision-Feedback Detector)及線性預測威特比接受器(Linearly Predictive Viterbi Receiver),做一階層式的介紹與探討。 模擬結果顯示差分塊狀時空編碼兩輸入兩輸出系統,應用傳統接收器可改善系統效能;然而,當接收天線數目較少時,則必須使用威特比接收器或決策回授接收器來達到較好之效能。 |
英文摘要 | For the single-carrier two-input-multiple-output (2IMO) differential space-time block code (DSTBC) system, the noncoherent maximum-likelihood sequence detector (NSD), and its three special cases, namely, the noncoherent one-shot detector, the linearly predictive decision-feedback (DF) detector, and the linearly predictive Viterbi receiver are reviewed through a hierarchical interpretation. Numerical results have revealed that the 2I2O DSTBCsystems employing the conventional receiver (CR) can obtain significant performance improvement. However, when few antennas are available, the implementation of the decision-feedback receiver (DR) or the Viterbi receiver (VR) is necessary for achieving better performance. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。