Applying Direction Finding Algorithms in the OFDM Smart Antenna System
碩士 === 國立臺北科技大學 === 電腦通訊與控制研究所 === 91 === A smart antenna system combines an antenna array and a digital signal processing to track the mobile location automatically. That can dramatically increase the performance characteristics in a wireless communication system. We use the adaptive dir...
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ndltd-TW-091TIT006520152015-10-13T13:35:32Z http://ndltd.ncl.edu.tw/handle/70790341292873057126 Applying Direction Finding Algorithms in the OFDM Smart Antenna System 訊號到達方向估測演算法則在正交分頻多工智慧型天線系統之應用 Kuo-wei Ho 何國維 碩士 國立臺北科技大學 電腦通訊與控制研究所 91 A smart antenna system combines an antenna array and a digital signal processing to track the mobile location automatically. That can dramatically increase the performance characteristics in a wireless communication system. We use the adaptive direction-of-arrival (DOA) algorithm, MUSIC, to archive the tracking location goal. But the DOA algorithm is proposed in a narrowband system. In a wideband system, the wideband frequency-selective fading will diminish the DOA performance. In order to overcome this problem, we introduce the OFDM(Orthogonal Frequency Division Multiplex) architecture to combat the wideband frequency-selective fading. In other words, the OFDM system can transferred a wideband frequency-selective fading into a combination of several narrowband flat fading channels. Thus, the DOA algorithm that proposed for the narrowband environment, like the MUSIC algorithm, can be applied to each narrowband system. 林信標 2003 學位論文 ; thesis 72 zh-TW |
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碩士 === 國立臺北科技大學 === 電腦通訊與控制研究所 === 91 === A smart antenna system combines an antenna array and a digital signal processing to track the mobile location automatically. That can dramatically increase the performance characteristics in a wireless communication system. We use the adaptive direction-of-arrival (DOA) algorithm, MUSIC, to archive the tracking location goal. But the DOA algorithm is proposed in a narrowband system. In a wideband system, the wideband frequency-selective fading will diminish the DOA performance.
In order to overcome this problem, we introduce the OFDM(Orthogonal Frequency Division Multiplex) architecture to combat the wideband frequency-selective fading. In other words, the OFDM system can transferred a wideband frequency-selective fading into a combination of several narrowband flat fading channels. Thus, the DOA algorithm that proposed for the narrowband environment, like the MUSIC algorithm, can be applied to each narrowband system.
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林信標 |
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林信標 Kuo-wei Ho 何國維 |
author |
Kuo-wei Ho 何國維 |
spellingShingle |
Kuo-wei Ho 何國維 Applying Direction Finding Algorithms in the OFDM Smart Antenna System |
author_sort |
Kuo-wei Ho |
title |
Applying Direction Finding Algorithms in the OFDM Smart Antenna System |
title_short |
Applying Direction Finding Algorithms in the OFDM Smart Antenna System |
title_full |
Applying Direction Finding Algorithms in the OFDM Smart Antenna System |
title_fullStr |
Applying Direction Finding Algorithms in the OFDM Smart Antenna System |
title_full_unstemmed |
Applying Direction Finding Algorithms in the OFDM Smart Antenna System |
title_sort |
applying direction finding algorithms in the ofdm smart antenna system |
publishDate |
2003 |
url |
http://ndltd.ncl.edu.tw/handle/70790341292873057126 |
work_keys_str_mv |
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