论文部分内容阅读
介绍了在高频表面波雷达(HFSWR)中,采用水平振子天线抑制天波干扰的自适应系统的初步研究结果。四个水平振子,两两正交排列,附加到通常采用垂直极化天线(VPA)的HFSWR系统中。从振子接收的数据与从VPA接收的数据相关,以便VPA自适应地估算和对消掉干扰。研究结果表明,该项技术对抗所研究的干扰效果很好。干扰加噪声功率被降低多达13dB,而Bragg对干扰加噪声之比升高多达21dB。本文对使用1个、2个或4个(不同组合)水平振子天线的自适应方法的效率进行了比较。比较结果表明,4个水平振子都采用时该技术比较有效。
This paper introduces the preliminary research results of an adaptive system using horizontal dipole antenna to suppress the sky-wave interference in high frequency surface wave radar (HFSWR). Four horizontal oscillators, arranged orthogonally from each other, are attached to the HFSWR system, which usually uses a vertically polarized antenna (VPA). The data received from the vibrator is related to the data received from the VPA so that the VPA can adaptively estimate and cancel the interference. The results show that the interference of the technology against the study is very good. Interference plus noise power is reduced by up to 13 dB, while Bragg’s interference-plus-noise ratio is increased by up to 21 dB. This article compares the efficiency of an adaptive approach using one, two, or four (different combinations) horizontal dipole antennas. The comparison results show that this technique is more effective when all the four horizontal oscillators are used.