| DC 欄位 |
值 |
語言 |
| DC.contributor | 通訊工程學系 | zh_TW |
| DC.creator | 黃俞豪 | zh_TW |
| DC.creator | Yu-Hau Huang | en_US |
| dc.date.accessioned | 2012-8-10T07:39:07Z | |
| dc.date.available | 2012-8-10T07:39:07Z | |
| dc.date.issued | 2012 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=995203044 | |
| 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 | 最近有一種新的相差編碼器被提出，它是藉由查表法所得到。本篇論文以此一主題，建立各種星座圖的多重符號相差編碼，並使最小非同調距離最大化。除此之外，查表法的相差編碼可以被描述成籬柵式的相差編碼，因此，我們在相差檢測器可以使用維特比(Viterbi)演算法以改善錯誤效能。並且也利用一定理來降低籬柵解碼時的狀態數量。此外，也使用決策回授與集合分割降低在多重符號相差解碼的籬柵複雜度。
| zh_TW |
| dc.description.abstract | Recently, a new differential encoder by a look-up table was proposed. In this thesis, we construct tables of multiple-symbol differential encoding for various constellations that maximize the minimum noncoherent distance. Because differential encoding by a table can be described as differential encoding by a trellis, we use the Viterbi algorithm at the differential detector to improve the error performance. We use a theorem to reduce the number of states of the decoding trellis. Besides, we use decision feedback and set partition to decrease the trellis complexity of multiple-symbol differential decoding.
| en_US |
| DC.subject | 相差編碼 | zh_TW |
| DC.subject | 多重符號 | zh_TW |
| DC.subject | Differential Encoding | en_US |
| DC.subject | Multiple Symbol | en_US |
| DC.title | 多重符號相差編碼 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Multiple-Symbol Differential Encoding | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |