在过去的十年中，荷兰的无线电频率是通过一种临时许可体制零星的分配的。
For the last ten years, radio frequencies in the Netherlands have been allocated on a piecemeal basis, via a system of temporary licences.
无线电测量既能引导激光测量系统，又能实现星间通信。
Radio metrology not only guides laser metrology, but also provides communication between satellites.
探讨了空基无线电掩星技术应用于遥感地球大气参数方法，并将该方法编制成资料处理软件。
The way of remote sensing of terrestrial atmospheric parameters using space borne GPS radio occultation technique is discusses in this paper.
详细描述了无线电掩星的基本技术原理。
无线电掩星技术能提供高精度、高垂直分辨率、全球覆盖的地球电离层和中性层大气剖面。
Radio occultation technique can provide the Earth's ionospheric and neutral atmosphere with high accuracy, high vertical resolution and global coverage.
无线电掩星技术是一种探测地球大气的崭新途径。
The radio occultation technique is a new way to explore the Earth's atmosphere.
作为星载掩星技术的推广，基于飞机平台的无线电掩星技术备受关注。
As an extended technique of GNSS radio occultation (RO), the airborne RO sounding has attracted much wider attention.
介绍了国外、国内GPS无线电掩星技术研究进展。
Progresses abroad and at home in GPS radio occultation technique are briefly introduced.
星载无线电系统性能；
本文在几何光学和薄相位屏的假设下，分别介绍GPS/LEO无线电掩星反演地球大气技术中振幅反演的计算方法。
Under the assumptions of geometric optics and thin phase screen the retrieval algorithms of amplitude in GPS/LEO occultation technique were listed in this paper, respectively.
“旅行者”向海王星靠拢时，喷气推进实验室的工程师们夜以继日地工作，发送无线电指示，但他们不知道环绕这颗行星的碎片的确切位置。
As Voyager closed in on Neptune, JPL engineers worked round the clock to radio instructions. But they did not know the exact location of the debris encircling the planet.
这一结果支持了目前无线电掩星定性误差估计研究中通常引入卫星圆轨道假设这个近似处理方法的合理性；
On one hand, this result supports those researchers who are engaged in qualitative error sources analyses are liable to employ circular orbit assumptions;
这一结果支持了目前无线电掩星定性误差估计研究中通常引入卫星圆轨道假设这个近似处理方法的合理性；
On one hand, this result supports those researchers who are engaged in qualitative error sources analyses are liable to employ circular orbit assumptions;
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