摘要翻译：
工作在毫米波频段的第五代移动网络系统(5G系统）将采用具有集成有源天线系统(AASs)的基站，该系统能够利用封装在芯片状器件中的阵列天线获得的窄波束进行波束跟踪。目前，对不需要的射频(RF)发射的监管限制是根据总辐射功率(TRP)来设定的。由于在天线连接器处的测量是不可能的，因此需要用空中(OTA)方法对不想要的发射进行TRP。本文研究的方法是在电波暗室中的球面上进行功率密度测量。这种方法的两个主要挑战是：需要大量的角点，以及在高频下为电大尺寸器件搜索每个频率的最坏情况天线配置。这些挑战通过研究相关、稀疏采样和波束扫描对TRP估计的影响来解决。最后，研究了近场切向电场测量如何以及在哪些空间区域可以用来评估TRP。
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英文标题：
《Angular sampling, Test Signal, and Near Field Aspects for Over-the-Air
  Total Radiated Power Assessment in Anechoic Chambers》
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作者：
Jonas Frid\'en and Aidin Razavi and Anders Stjernman
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最新提交年份：
2018
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分类信息：

一级分类：Electrical Engineering and Systems Science        电气工程与系统科学
二级分类：Signal Processing        信号处理
分类描述：Theory, algorithms, performance analysis and applications of signal and data analysis, including physical modeling, processing, detection and parameter estimation, learning, mining, retrieval, and information extraction. The term "signal" includes speech, audio, sonar, radar, geophysical, physiological, (bio-) medical, image, video, and multimodal natural and man-made signals, including communication signals and data. Topics of interest include: statistical signal processing, spectral estimation and system identification; filter design, adaptive filtering / stochastic learning; (compressive) sampling, sensing, and transform-domain methods including fast algorithms; signal processing for machine learning and machine learning for signal processing applications; in-network and graph signal processing; convex and nonconvex optimization methods for signal processing applications; radar, sonar, and sensor array beamforming and direction finding; communications signal processing; low power, multi-core and system-on-chip signal processing; sensing, communication, analysis and optimization for cyber-physical systems such as power grids and the Internet of Things.
信号和数据分析的理论、算法、性能分析和应用，包括物理建模、处理、检测和参数估计、学习、挖掘、检索和信息提取。“信号”一词包括语音、音频、声纳、雷达、地球物理、生理、（生物）医学、图像、视频和多模态自然和人为信号，包括通信信号和数据。感兴趣的主题包括：统计信号处理、谱估计和系统辨识；滤波器设计；自适应滤波/随机学习；（压缩）采样、传感和变换域方法，包括快速算法；用于机器学习的信号处理和用于信号处理应用的机器学习；网络与图形信号处理；信号处理中的凸和非凸优化方法；雷达、声纳和传感器阵列波束形成和测向；通信信号处理；低功耗、多核、片上系统信号处理；信息物理系统的传感、通信、分析和优化，如电网和物联网。
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英文摘要：
  5th Generation Mobile Network Systems(5G systems) operating in milli-meter Wave (mmW) bands will employ base stations with integrated Active Antenna Systems (AASs) capable of beam-tracking using narrow beams obtained from array antennas encapsulated in a chip-like device. Regulatory limits for unwanted Radio Frequency (RF) emissions are currently set in terms of Total Radiated Power (TRP). As measurements at the antenna connectors are not possible, Over-The-Air (OTA) methods for TRP of unwanted emissions are needed. The method investigated here uses power density measurements on a spherical surface in an anechoic chamber. Two major challenges with such a method are: need for large number of angular points, and search for worst case antenna configuration per frequency for electrically large devices at high frequencies. These challenges are addressed by investigating the impact of correlation, sparse sampling, and use of beam sweeping on the TRP estimate. Finally, it is investigated how and in which spatial regions near-field tangential electric field measurements can be used to assess TRP.
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PDF链接：
https://arxiv.org/pdf/1803.10993