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首页> 外文期刊>Aerospace and Electronic Systems, IEEE Transactions on >CW Interference Effects on Tracking Performance of GNSS Receivers
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CW Interference Effects on Tracking Performance of GNSS Receivers

机译：连续波干扰对GNSS接收机跟踪性能的影响

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摘要

Analytical expressions are suggested for GNSS receiver performance such as the effective $C/N_0$, code tracking (DLL) error and carrier phase tracking (PLL) error for a receiver affected by CW interference signals. The navigation signal model is applied to GNSS power spectral density (PSD) to interpret spectral line effects within receiver tracking low pass filter, limited by navigation data bits. A scaled envelope model is also introduced to estimate average susceptibility of signal against CW interferences. Numerical results show how the spectral lines and correlator model can affect the tracking performances, and the sensitivity of GNSS signals against the CW interferer is investigated by varying data bit duration or integration time.
机译：对于GNSS接收机性能，建议使用解析表达式，例如受CW干扰信号影响的接收机的有效$ C / N_0 $，代码跟踪（DLL）错误和载波相位跟踪（PLL）错误。将导航信号模型应用于GNSS功率谱密度（PSD），以解释受导航数据位限制的接收机跟踪低通滤波器内的谱线效应。还引入了按比例缩放的包络模型以估计信号对CW干扰的平均磁化率。数值结果表明，谱线和相关器模型如何影响跟踪性能，并通过改变数据位的持续时间或积分时间来研究GNSS信号对CW干扰的敏感性。

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