Preliminary statistics from the NASA Alphasat beacon receiver in Milan, Italy
Preliminary statistics from the NASA Alphasat beacon receiver in Milan, Italy
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位于意大利米兰的 NASA Alphasat 信标接收器的初步统计数据
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
C. Riva
中科院分区：
文献类型：
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作者：
J. Nessel;M. Zemba;Jacquelynne R. Morse;L. Luini;C. Riva
美国航天局格伦研究中心和米兰理工大学在Alphasat传播实验的框架内发起了一项联合传播活动，以确定40 GHz波段大气的雨衰减、闪烁和气体吸收效应的特征。美国航天局地面研究中心开发并在意大利米兰的波利米园区安装了一个K/Q波段（20/40千兆赫）信标接收器，该接收器接收Alphasat Aldo Paraboni TDP#5信标有效载荷广播的20/40千兆赫信号。这些测量的主要目标是开发一个物理模型，以改善Q波段内通信系统性能的预测。在此，我们提供了一个概述的设计和数据校准程序，并提出了6个月的初步统计数据的美国宇航局的传播终端，已安装和运行在米兰自2014年5月。Q波段接收机在8 Hz采样率下的动态范围为40 dB。还安装了一个带有光学散射计的气象站，以表征雨滴尺寸分布，以便与基于物理的模型进行关联。
NASA Glenn Research Center (GRC) and the Politecnico di Milano (POLIMI) have initiated a joint propagation campaign within the framework of the Alphasat propagation experiment to characterize rain attenuation, scintillation, and gaseous absorption effects of the atmosphere in the 40 GHz band. NASA GRC has developed and installed a K/Q-band (20/40 GHz) beacon receiver at the POLIMI campus in Milan, Italy, which receives the 20/40 GHz signals broadcast from the Alphasat Aldo Paraboni TDP#5 beacon payload. The primary goal of these measurements is to develop a physical model to improve predictions of communications systems performance within the Q-band. Herein, we provide an overview of the design and data calibration procedure, and present 6 months of preliminary statistics of the NASA propagation terminal, which has been installed and operating in Milan since May 2014. The Q-band receiver has demonstrated a dynamic range of 40 dB at an 8-Hz sampling rate. A weather station with an optical disdrometer is also installed to characterize rain drop size distribution for correlation with physical based models.