| DC 欄位 |
值 |
語言 |
| DC.contributor | 通訊工程學系 | zh_TW |
| DC.creator | 林育志 | zh_TW |
| DC.creator | Ｙｕ-chih Lin | en_US |
| dc.date.accessioned | 2008-7-24T07:39:07Z | |
| dc.date.available | 2008-7-24T07:39:07Z | |
| dc.date.issued | 2008 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=955203004 | |
| 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 | 本論文提出一種適用於無線通訊系統的時間與頻率偏移估測技術，利用雙啁啾信號可有效地估測時間與頻率誤差。此方法可應用於各種通訊環境之同步。我們提出時域與頻域兩種接收器，並比較兩者的效能與準確度。其中一接收器使用兩個時域相關器，藉著估測時間峰值進行線性組合運算以估測時間與頻率。另一則使用一組成對的頻域相關器，藉著估測頻率峰值進行線性轉換以估測時間與頻率。最後以正交分頻多工系統之參數進行模擬，結果證明其可有效地達成同步。 | zh_TW |
| dc.description.abstract | This paper describes two novel structures for reception of dual-chirp
waveforms. The approaches provide mechanisms for synchronization in
various communications environments. Both detection performance, and time
and frequency estimation accuracy are analyzed and simulated. One receiver
utilizes a dual time-domain correlator to initially estimate two peak times after
detection. Time and frequency estimates are obtained by linearly combining the
peak time estimates. The second receiver uses paired frequency-domain
correlators to initially estimate two peak frequencies and then linearly convert
them to the time and frequency estimates. | en_US |
| DC.subject | 啁啾信號 | zh_TW |
| DC.subject | 時間與頻率偏移估測 | zh_TW |
| DC.subject | 同步 | zh_TW |
| DC.subject | synchronization | en_US |
| DC.subject | chirp signal | en_US |
| DC.subject | estimation | en_US |
| DC.title | 無線正交分頻多工通訊系統中運用啁啾信號之時間與頻率偏移估測 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Joint Time and Frequency Offset Estimation Assisted from Chirp Signal forWireless OFDM Communications | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |