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An evaluation of the radio frequency susceptibility of commercialGPS receivers

机译：商用GPS接收机的射频敏感性评估

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摘要

The radio frequency (RF) susceptibility characteristics of two commercial Global Positioning System (GPS) receivers were evaluated. A first-order analysis was performed to predict the receiver susceptibility thresholds based on the receiver sensitivity and processing gain. The receiver susceptibility thresholds in the post-acquisition mode were then measured for various interference signal frequencies and modulations. Both receivers exhibited very low susceptibility thresholds to in-band continuous wave (CW) signals. In addition, both receivers could be over-driven with an out-of-band signal. In this state the receivers indicated acceptable figures of merit despite loss of satellite signal lock
机译：评估了两个商用全球定位系统（GPS）接收机的射频（RF）敏感性特性。基于接收器灵敏度和处理增益，执行了一次分析以预测接收器磁化率阈值。然后，针对各种干扰信号频率和调制情况，测量了采集后模式下的接收机敏感性阈值。两种接收器均对带内连续波（CW）信号表现出非常低的敏感性阈值。此外，两个接收器都可能被带外信号过驱动。在这种状态下，尽管失去了卫星信号锁定，接收机仍显示出可接受的品质因数

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