DFIS用于抑制CDMA中的多路单频干扰

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Abstract This paper proposes a nonlinear descision feedback interference suppressor (DFIS)used both in the estimation of filter reference input and the weight update to suppress multi-tone interference in CDMA.Structure of DFIS is simpler.Two kinds of estimation filter;I.e.,single-side prediction filter and two-side tapped filter are used.Expressions of the SNR improvement are derived.The results of simulation with comparison to the theoretical analysis for two estimation filters are presented on the rejection performance.

Key words： Decision feedback interference suppressor Multi-tone interference CDMA LMS algorithm

Received: 16 October 1998

PACS:

TN914.5

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	Du Libing
	Wang Zhijie
	Sun Hongyu

Cite this article:

Du Libing,Wang Zhijie,Sun Hongyu. USING DFIS FOR MULTI-TONE INTERFERENCE SUPPRESSION IN CDMA[J]. , 2000, 22(4): 568-572 .

URL:

http://jeit.ie.ac.cn/EN/ OR http://jeit.ie.ac.cn/EN/Y2000/V22/I4/568