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软件定义的无线电用于GNSS 无线电频率干扰定位定位
Fred Taylor1, Evan Gattis1, Lucca Trapani1
1Ann and H.J. Smead Aerospace Engineering Sciences, University of Colorado Boulder, Boulder, CO 80303, USA.
Sensors (Basel, Switzerland)
|January 11, 2024
概括
像KrakenSDR这样的新型低成本无线电硬件显示了全球导航卫星系统 (GNSS) 干扰检测的前景. 测试证实了其相连贯性和到达角度能力,以提高GNSS信号安全性.
科学领域:
- 无线电频率工程 无线电频率工程
- 信号处理 信号处理
- 导航系统 导航系统
背景情况:
- 全球导航卫星系统 (GNSS) 频段的有害干扰是一个持续的挑战.
- 商用现成 (COTS) 无线电硬件的进步为干扰检测提供了新的解决方案.
- 阶段连贯接收平台为改进GNSS信号监控提供了潜力.
研究的目的:
- 测试和描述KrakenSDR,一个低成本,紧,相连接接收平台.
- 评估KrakenSDR适用于全球导航卫星系统 (GNSS) 应用的适用性,特别是干扰识别.
- 评估到达角 (AoA) 估计和相关指标的性能.
主要方法:
- 对KrakenSDR平台进行了基板和现场测试.
- 阶段一致性和AoA估计精度的表征.
- 对接收信号强度指标 (RSSI) 和AoA信心值的分析.
- 在900 MHz和1575.42 MHz (GNSS L1频段) 进行测试.
主要成果:
- 克拉肯SDR在数组依赖的分辨率范围内证明了相连贯性和AoA估计.
- RSSI和AoA的信心值与AoA估计质量有很强的相关性.
- 该平台证明能够在GNSS频率上运行.
结论:
- 克拉肯SDR是一个可行的,低成本的平台,用于GNSS干扰检测和信号监控.
- 它的性能指标为信号质量和方向提供了宝贵的见解.
- 活跃天线阵列的校准对于GNSS信号采集中准确的AoA估计至关重要.
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