Study on Open-Loop Adaptive FIR Filter Approach for Interference Suppression

Guo Yi; Wang Shi-lian; Zhang Er-yang

doi:10.3724/SP.J.1146.2005.01182

Volume 29 Issue 4

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Article Navigation > Journal of Electronics & Information Technology > 2007 > 29(4): 959-962

Guo Yi, Wang Shi-lian, Zhang Er-yang. Study on Open-Loop Adaptive FIR Filter Approach for Interference Suppression[J]. Journal of Electronics & Information Technology, 2007, 29(4): 959-962. doi: 10.3724/SP.J.1146.2005.01182

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Guo Yi, Wang Shi-lian, Zhang Er-yang. Study on Open-Loop Adaptive FIR Filter Approach for Interference Suppression[J]. Journal of Electronics & Information Technology, 2007, 29(4): 959-962. doi: 10.3724/SP.J.1146.2005.01182

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Study on Open-Loop Adaptive FIR Filter Approach for Interference Suppression

doi: 10.3724/SP.J.1146.2005.01182 cstr: 32379.14.SP.J.1146.2005.01182

Received Date: 2005-09-19
Rev Recd Date: 2006-03-13
Publish Date: 2007-04-19

Abstract

Abstract

A new approach for interference suppression in DSSS communication is introduced aim at the shortcomings of the method in transform domain. It combines interference detection in transform domain with interference suppression using open-loop adaptive FIR excision filtering in time domain. The expression of receiver signal-to-noise ratio is derived and it is maximized by adjusting filter coefficients depend on the interference power and its frequency information. The numerical simulation demonstrates that the proposed method is better than FFT method in transform domain in both single-tone and multi-tone interference environment and is effective and efficient to narrowband interferences.

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References(1)

References

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