基于用戶信號的多徑信號分組的DOA估計
DOA Estimation Based on Multipath Signal Grouping of User Signal
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摘要: 在移動通信中，多徑信號的分組一直是研究的重點。本文提出一種多徑環(huán)境下的宿主用戶和多徑信號的分組和DOA估計算法。該算法不需要采用擴頻技術確定多徑信號的歸屬問題，因此不但可以應用于CDMA系統(tǒng)，而且可以應用于GSM系統(tǒng)。
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關鍵詞:
- DOA; 陣列; 多徑; 空間特征
Abstract: In mobile communication systems, the work upon grouping multipath signal is very important always. An algorithm is proposed which firstly separates user signals and multipath signals in system, then estimates DOA of them. Because this algorithm does not need spread spectrum to identify multipath signals, it not only can be adopted in CDMA system, but also can be applied to GSM system. -
Cadzow J A, el al.. Resolution of coherent signals using a linear array[J].Proc. IEEE ICASSP87,Arizona State University, Tempe, Arizona, April 1987: 1599-1600. [2]Cozzens J H, el al.. Enumeration of fully correlated signals by modified rank sequences. Proc.IEEE ICASSP87, Glasgow, UK, April 1989: 2274-2277. [3]Astrom K, Heyden A. Stochastic analysis of scale-space smoothing. Proceedings of the 13th International Conference on Pattern Recognition, Vienna, Austria, Aug. 25-29, 1996, Vol.2:305-309. [4]Tie-Jun Shan, Wax M, Kailath T. On spatial smoothing for direction-of-arrival estimation of coherent signals. IEEE Trans., Acoustics, Speech, and Signal Processing.1985, 33(4):806-811 -
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