Excision of Distance Measuring Equipment Interference from Radio Astronomy Signals

Excision of Distance Measuring Equipment Interference from Radio Astronomy Signals
复制标题

射电天文信号测距设备干扰的消除

DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
R. Bradley
R. Bradley
中科院分区：
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文献类型：
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作者：
Qing Zhang;Yibin Zheng;S. G. Wilson;J. Fisher;R. Bradley

文献摘要

被引文献

相似文献

飞行器在飞行中发射的测距设备(DME)信号在1 GHz左右的射电天文频段是一个很强的干扰源。在本文中，我们提出了一种在不显著损失射电天文数据的情况下极大地抑制这种干扰的方法。该方法利用DME波形的已知结构来对聚集信号执行时间/频域消隐。结果表明，该方法是有效的。此外，还考虑了消隐算法的有效实现。
Distance measuring equipment (DME) signals transmitted by aircraft in flight present a strong source of interference in radio astronomy bands around 1 GHz. In this paper, we present a method for greatly suppressing this interference without significant loss of radio astronomy data. The method exploits the known structure of the DME waveform to perform a time/frequency domain blanking on the aggregate signal. Results are presented that illustrate the effectiveness of the procedure. Efficient implementation of the blanking algorithm is also considered.