基于自适应多门限算法的变换域窄带干扰抑制
Narrow-Band Interference Suppression in Transform Domain Based on Adaptive Multi-threshold Algorithm
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摘要: 该文分析基于门限检测的直接序列扩频通信系统变换域窄带干扰抑制技术，提出一种基于自适应多门限窄带干扰抑制算法，并对其性能进行详细分析，理论分析和数字仿真结果表明，该算法可有效抑制直扩通信系统中的窄带干扰，并且相对于传统的门限检测算法，有自适应性强，门限设计简单等优点。Abstract: This paper studies the narrowband interference suppression algorithm based on threshold detection in transform domain, and a novel adaptive multi-threshold narrowband interference detection algorithm is proposed. Theoretical analysis and simulations prove that this algorithm has good performance in suppressing the narrowband interference in DSSS signal.
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Kasparis T.[J].Georgiopoulos M, Payne E. Non-linear filtering techniques for narrow-band interference rejection in direct sequence spread.spectrum systems [C], IEEE MilCOM1991, Mclean VA.1991,:-[2]Saulnier G J. Suppression of narrowband jammers in a spread-spectrum receiver using transform-domain adaptive filtering [J], IEEE J. on Selected Areas in Communications, 1992, 10(4): 742749. .[3]Young J A, Lehnert J S. Analysis of DFT-based frequency excision algorithms for directsequence spread-spectrum communications [J]. IEEE Trans. on communications, 1998, 46(8): 10761087. ..[4]Capozza P T. A single-chip narrow-band frequency-domain excisor for a Global Positioning System (GPS) receiver [J]. IEEE J. of Solid State Circuits, 2000, 35(3): 401411. .[5]DiPietro R C. An FFT based technique for suppressing narrow-band interference in PN spread-spectrum communication systems [C]. IEEE Processing on ICASSP, Scotland, 1989: 13601363. .[6]薛巍, 向敬成, 黄怀信. 基于门限检测的直扩通信系统窄带干扰变换域抑制方法[J].电子与信息学报.2003, 25(7):990-浏览[7]Ketchum J W, Proakis J G. Adaptive algorithms for estimating and suppressing narrow-band interference in PN spread- spectrum systems[J]. IEEE Trans. on Communications, 1982, 30(5): 913924.[8]罗鹏飞, 张文明, 刘福声, 随机信号分析[M],长沙: 国防科技大学出版社, 2000: 155158. -
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