通过三维波场合成和空中测试模拟真实的 GNSS 场景

IF 1.1 4区 计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Renato Zea Vintimilla, Kevin Drenkhahn, Christoph Wagner, Mario Lorenz, Markus Landmann, Giovanni del Galdo
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引用次数: 0

摘要

空中(OTA)测试已成为评估无线设备在可控和可重复条件下性能的重要工具。这些优点提供了对被测设备(DUT)性能的深入了解;然而,与野外测试相比,OTA测试获得的真实感仍然适中。本论文采用无线设备的OTA测试方法,并将其与波场合成(WFS)技术相结合,提高了测试的效率、可靠性,特别是提高了测试的真实性。这一贡献的主要重点是使用上述方法模拟暗室内的真实GNSS场景,其中在远场以电子方式生成多个虚拟卫星信号及其单个轨迹。为了验证和验证该方法,将商用GNSS天线和接收机作为被测物放置在舱内。详细描述了在OTA试验台中实现的WFS校准方法以及每种方法获得的性能分析。本研究力求为即将到来的拟议方法的标准化奠定基础,该方法不仅适用于GNSS设备,也适用于任何种类的无线设备。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Emulation of Realistic GNSS Scenarios Over 3D Wave Field Synthesis and Over-The-Air Testing

Emulation of Realistic GNSS Scenarios Over 3D Wave Field Synthesis and Over-The-Air Testing

Over-the-air (OTA) tests have become an essential tool to assess the performance of a wireless device under controllable and repeatable conditions. Such benefits provide a deep insight into the device under test (DUT) performance; nevertheless, the realism achieved by OTA tests is still moderate in comparison to open-field tests. This contribution takes the OTA testing method for wireless devices and combines it with the wave field synthesis (WFS) technique to increase the efficiency, reliability and especially the realism of the tests. The main focus of this contribution is to use the aforementioned method to emulate realistic GNSS scenarios inside an anechoic chamber, where multiple virtual satellite signals are electronically generated in the far field along with their individual trajectories. For the validation and verification of the method, a commercial GNSS antenna and receiver are placed as the DUT inside the chamber. The WFS calibration methods implemented in an OTA testbed are described in detail along with the performance analysis obtained by each method. This study strives to establish the foundation for a forthcoming standardisation of the proposed methodology, applicable not only to GNSS devices but also to any variety of wireless devices.

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来源期刊
Iet Microwaves Antennas & Propagation
Iet Microwaves Antennas & Propagation 工程技术-电信学
CiteScore
4.30
自引率
5.90%
发文量
109
审稿时长
7 months
期刊介绍: Topics include, but are not limited to: Microwave circuits including RF, microwave and millimetre-wave amplifiers, oscillators, switches, mixers and other components implemented in monolithic, hybrid, multi-chip module and other technologies. Papers on passive components may describe transmission-line and waveguide components, including filters, multiplexers, resonators, ferrite and garnet devices. For applications, papers can describe microwave sub-systems for use in communications, radar, aerospace, instrumentation, industrial and medical applications. Microwave linear and non-linear measurement techniques. Antenna topics including designed and prototyped antennas for operation at all frequencies; multiband antennas, antenna measurement techniques and systems, antenna analysis and design, aperture antenna arrays, adaptive antennas, printed and wire antennas, microstrip, reconfigurable, conformal and integrated antennas. Computational electromagnetics and synthesis of antenna structures including phased arrays and antenna design algorithms. Radiowave propagation at all frequencies and environments. Current Special Issue. Call for papers: Metrology for 5G Technologies - https://digital-library.theiet.org/files/IET_MAP_CFP_M5GT_SI2.pdf
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