| DC 欄位 |
值 |
語言 |
| DC.contributor | 通訊工程學系 | zh_TW |
| DC.creator | 魏秀如 | zh_TW |
| DC.creator | Xiu-Ru Wei | en_US |
| dc.date.accessioned | 2011-7-11T07:39:07Z | |
| dc.date.available | 2011-7-11T07:39:07Z | |
| dc.date.issued | 2011 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:444/thesis/view_etd.asp?URN=985203013 | |
| dc.contributor.department | 通訊工程學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 在最近有一個新的相差編碼方法被提出來，它利用查表實現，不像傳統的一樣使用相差編碼規則。本篇論文研究，用於多重符號相差檢測之使用查表相差編碼，此相差編碼根據先前多個時間傳送的符號和目前的資料位元，經由查表獲得目前傳送訊號，用此表所做的相差編碼，其最小非同調距離優於原本相差編碼，模擬結果證實有比較好。此外，我們在相差檢測器利用維特比演算法，以進一步降低錯誤率。
| zh_TW |
| dc.description.abstract | Differential encoding by a look-up table for QAM was proposed recently.
In this thesis, but not by a rule,using differential encoding by a table for multiple- symbol differential detection.The transmitted symbol can be obtained by looking up this read-only table according to the previously transmitted multiple symbol and data bits.Using a table for differential encoding has the advantages of both low complexity and good error performance.The results show that, differential encoding by a table is equivalent to differential encoding by a trellis. Besides Viterbi algorithm to further lower error performance.
| en_US |
| DC.subject | 相差檢測 | zh_TW |
| DC.subject | differential encoding | en_US |
| DC.title | 用於多重符號相差檢測之使用查表相差編碼 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Differential Encoding by a Table for Multiple-Symbol Differential Detection | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |