Performance considerations for protected wideband satcom
Performance considerations for protected wideband satcom
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受保护的宽带卫星通信的性能注意事项
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
James Streitman
中科院分区：
文献类型：
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作者：
IV ThomasC.Royster;James Streitman
越来越多的人对使用转发的有效载荷向用户提供抗干扰链路感兴趣。在我们考虑的系统类型中，多个用户终端使用协调的跳频波形向卫星发送，并且接收到的信号被中继到地面处理“集线器”终端进行基带处理。在本文中，表达式计算端到端的信号噪声比，这样的系统，并提供了一些示例结果。特别是，建模的影响，如信号抑制，互调噪声和增益设置进行了讨论。通过单独考虑端到端链路性能的每个组件，限制性能的因素更加明显，使系统设计人员能够确定哪些改进将产生最大的影响。
There is increased interest in using transponded payloads to provide jam-resistant links to users. In the type of system we consider, multiple user terminals transmit to a satellite using a coordinated frequency hopping waveform, and the received signals are relayed to a ground processing “hub” terminal for baseband processing. In this paper, expressions for computing end-to-end signal-to-noise ratios for such systems are presented, and some example results are provided. In particular, modeling of effects such as signal suppression, intermodulation noise, and gain setting is discussed. By considering each component of the end-to-end link performance separately, the factors limiting performance are more apparent, enabling the system designer to identify which improvements would have the greatest impact.