Spacial Filter of Weighting Method Based on Spectrum Analyse

Xian Mao Li; Gao Ming Huang; Dong Xia

doi:10.4028/www.scientific.net/AMR.605-607.1890

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 605-607Spacial Filter of Weighting Method Based on...

Spacial Filter of Weighting Method Based on Spectrum Analyse

Abstract:

The selection of a certain scope angle signal in the traditional method is to switch the hard switches in antennas, this paper proposes a method, which based on a weighting method to filter the signal in certain directions, namely spacial filter. With array antennas，the compositive signal can be acquired, by which the phrase and plus (weighting) of each unit antenna’s signal be adjusted and then the signals be added. In different time, signals can be selected in any scope of directions through adjusting each channels by different weighting. The weighting parameters can be obtained through the analysis of spacial signal and spacial spectrum, and then obtains an appropriate weighting window function. Simulation shows that Hamming window’s weighting is the best among the three representative windows functions. It can obtain a low sidelobe (-44dB) and less rising edge and declining edges. And the paper also give a hardware structure.

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Periodical:

Advanced Materials Research (Volumes 605-607)

Pages:

1890-1896

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.605-607.1890

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Online since:

December 2012

Authors:

Xian Mao Li, Gao Ming Huang, Dong Xia

Keywords:

Hamming Window, Hanning Window, Rectangle Window, Spacial Filter, Spacial Spectrum, Weighting

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References

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