Commercial GNSS Radio Occultation on Aerial Platforms With Off-The-Shelf Receivers

IF 3.1 3区地球科学 Q1 ENGINEERING, AEROSPACE

Navigation-Journal of the Institute of Navigation Pub Date : 2022-01-01 DOI:10.33012/navi.544

B. Chan, A. Goel, Jonathan Kosh, T. Reid, Corey Snyder, P. Tarantino, Saraswati Soedarmadji, Widyadewi Soedarmadji, Kevin Nelson, F. Xie, Michael Vergalla

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引用次数: 1

Abstract

In recent decades, GNSS radio occultation (RO) soundings have proven to be an invaluable input to global weather forecasting. The success of government pro-grams such as COSMIC is now complemented by commercial low-cost cubesats. The result is access to more than 10,000 soundings per day. We examine aerial platforms for commercial GNSS-RO, specifically high-altitude balloons and commercial aviation. Meteorological balloons (radiosondes) are deployed daily in over 900 locations globally. Adding GNSS-RO capability to radiosondes would expand capability and enable local area monitoring. Commercial aviation offers scale with more than 100,000 flights daily. A barrier to entry for the inclusion of GNSS-RO sensors is cost and complexity, as GNSS-RO traditionally requires highly specialized equipment. This paper describes a low-cost and scalable approach to aerial GNSS-RO based on commercial-off-the-shelf (COTS) GNSS receivers. We present hardware prototypes and data processing techniques that demonstrate technical feasibility through the results from several flight testing campaigns.

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商用GNSS无线电掩星在空中平台与现成的接收器

近几十年来，GNSS无线电掩星(RO)探测已被证明是全球天气预报的宝贵投入。像COSMIC这样的政府项目的成功现在得到了商业低成本立方体卫星的补充。其结果是每天可以进行1万多次测深。我们研究商业GNSS-RO的空中平台，特别是高空气球和商业航空。气象气球(无线电探空仪)每天部署在全球900多个地点。将GNSS-RO能力增加到无线电探空仪将扩大能力并使局部区域监测成为可能。商业航空提供了每天超过10万次航班的规模。纳入GNSS-RO传感器的一个障碍是成本和复杂性，因为GNSS-RO传统上需要高度专业化的设备。本文介绍了一种基于商用GNSS接收机的低成本、可扩展的空中GNSS- ro方法。我们展示了硬件原型和数据处理技术，通过几次飞行测试活动的结果证明了技术可行性。

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来源期刊

Navigation-Journal of the Institute of Navigation ENGINEERING, AEROSPACE-REMOTE SENSING

CiteScore

5.60

自引率

13.60%

发文量

期刊介绍： NAVIGATION is a quarterly journal published by The Institute of Navigation. The journal publishes original, peer-reviewed articles on all areas related to the science, engineering and art of Positioning, Navigation and Timing (PNT) covering land (including indoor use), sea, air and space applications. PNT technologies of interest encompass navigation satellite systems (both global and regional), inertial navigation, electro-optical systems including LiDAR and imaging sensors, and radio-frequency ranging and timing systems, including those using signals of opportunity from communication systems and other non-traditional PNT sources. Articles about PNT algorithms and methods, such as for error characterization and mitigation, integrity analysis, PNT signal processing and multi-sensor integration, are welcome. The journal also accepts articles on non-traditional applications of PNT systems, including remote sensing of the Earth’s surface or atmosphere, as well as selected historical and survey articles.