| Adaptive cancellation of Es layer interference using auxiliary horizontal antennas |
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| 作者姓名： | Zhao Long & Zhang Ning Inst. of Electronic Engineering Harbin Inst. of Technology Harbin P. R. China |
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| 作者单位： | Zhao Long & Zhang Ning Inst. of Electronic Engineering，Harbin Inst. of Technology，Harbin 150001，P. R. China |
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| 摘 要： | 1 .INTRODUCTIONBesides the regularly Dlayer、Elayer、F1 layer andF2 layer ,ionosphere also has sporadic Elayer (Eslayer) .Es layer is theionized clouds with all kindsof shapes that appearinthe altitude of Elayer ,andthe peak values of the Es cloud electron density aremuch higher thanthe peak value of the Elayer elec-tron density around. The ionospheric interference(ELI) discussedinthis Letter are the transmitted sig-nal which are directly reflected back by the Es layer .ELI is a sel…
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| 收稿时间： | 3 February 2005 |
Adaptive cancellation of Es layer interference using auxiliary horizontal antennas |
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| Zhao Long & Zhang Ning Inst. of Electronic Engineering,Harbin Inst. of Technology,Harbin ,P. R. China.Adaptive cancellation of Es layer interference using auxiliary horizontal antennas[J].Journal of Systems Engineering and Electronics,2006,17(2):313-315. |
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| Authors: | Zhao Long Zhang Ning |
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| Institution: | Inst. of Electronic Engineering, Harbin Inst. of Technology, Harbin 150001, P. R. China |
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| Abstract: | Based on a dual-polarization high-frequency wa ve radar system, an adaptive system using horizontal antennas for the suppressio n of the Es layer interference (ELI) is described. The data received from the ho rizontal antennas were correlated with the data received from the Vertically Pol arized Antennas (VPAs) to estimate and cancel the interference adaptively in the VPAs. Suppressing the interference after each coherent integration time interva l, about 25 dB signal-to-interference ratio is expected with the experimentall y derived data. |
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| Keywords: | dual-polarization auxiliary horizontal antennas adaptive cancellation signal-to-interference ratio |
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