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TDD-CDMA中有效提高获取概率的多径搜索(英文)

Efficient multipath searching to improve acquisition probability in TDD-CDMA
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摘要 Teager-Kaiser能量算子作为一种非线性滤波器可以有效提取特征,提高受噪声影响的信号识别。研究了Teager-Kaiser能量算子在信道估计多径搜索中的应用,该方法不要求对信道参数空间的先验知识。分析了Teager-Kaiser能量算子对经典Steiner信道估计器进行处理的特性,计算机仿真结果表明它可以在抑制噪声的同时,有效区分密集分布的多径。 Teager-Kaiser operator as an energy nonlinear filter has been shown to efficiently extract features to enhance noisy signal recognition. This paper studies its application on multipath searching without a priori knowledge of channel parameter space. The characteristics of TK operation on the classical Steiner channel estimation are analyzed and simulation results show its capability of separating closely spaced multi-paths while reducing noise.
出处 《重庆邮电大学学报(自然科学版)》 2008年第1期30-32,共3页 Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)
基金 国家高技术研发发展计划"863"课题项目(2004AA123150)
关键词 时分码分多址 多径搜索 Teager-Kaiser算子 获取概率 TDD-CDMA multipath search Teager-Kaiser operator acquisition probability
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参考文献10

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