In the near future, the upcoming Navigation through Indian Constellation (NavIC) system will be used for navigation services in India. All services provided by the NavIC receiver must be reliable and resistant to threats. Therefore, the real-time NavIC signal is examined under intentional software defined radio based chirp-jamming by different methods. Since the NavIC signal is available for all the time, jamming scenario has been analysed through power spectral density by calculating the spectral energy distribution per unit time. Furthermore, the received signal is examined through the auto-correlation function and the signal strength monitored at receiver. The dynamic jamming scenario is used for survey and lead to the main observations. For example, the satellites IRNSS-1E, 1F and 1G are more susceptible to interference in such scenario and if the dynamic receiver is closer to interference source, the jammer becomes a serious threat which can block the NavIC signal.

中文翻译：

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基于功率和自相关功能监视的II类干扰下的NavIC信号检查

在不久的将来，即将通过印度星座导航（NavIC）系统将用于印度的导航服务。NavIC接收器提供的所有服务必须可靠并且能够抵抗威胁。因此，在实时软件定义的基于无线电的线性调频干扰下，可以通过不同的方法来检查实时NavIC信号。由于NavIC信号始终可用，因此通过计算每单位时间的频谱能量分布，通过功率频谱密度分析了干扰情况。此外，通过自相关功能检查接收到的信号，并在接收机处监视信号强度。动态干扰方案用于调查并得出主要观察结果。例如，卫星IRNSS-1E，