Novel nonstationary interference rejection technique in spread spectrum communications

被引：0
|
作者：
Zhu, Li-Ping [1 ]
Hu, Guang-Rui [1 ]
Zhu, Yi-Sheng [2 ]
Song, Yang [1 ]
机构：
[1] Dept. of Electron. Eng., Shanghai Jiaotong Univ., Shanghai 200030, China
[2] Coll. of Info. Eng., Dalian Maritime Univ., Dalian 116026, China
来源：
Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University | 2004年 / 38卷 / 02期
关键词：
Bit error rate - Computer simulation - Dynamic programming - Interference suppression - Radio receivers - Robustness (control systems);
D O I：
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中图分类号：
学科分类号：
摘要：
Adaptive hierarchical lapped orthogonal transform (AHLOT) was proposed to track and reject the nonstationary interference in spread spectrum communications. AHLOT differs from hierarchical lapped transform (HLT) in that the former produces an arbitrary dyadic nonuniform time axis split, which can be adapted to the signal time-frequency structure, while the latter pays no attention to the signal structure and produces fixed dyadic split. A fast dynamic programming algorithm is utilized to select the basis, which matches the interference best, from a library of lapped orthogonal bases. The simulation results demonstrate that the technology improve bit error rate (BER) performance and increase the robustness of proposed receiver in the presence of nonstationary interference.
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页码：172 / 174
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