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METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR MITIGATION OF IN-BAND INTERFERENCE OF GLOBAL POSITIONING SYSTEM (GPS) SIGNALS
METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR MITIGATION OF IN-BAND INTERFERENCE OF GLOBAL POSITIONING SYSTEM (GPS) SIGNALS
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机译:缓解全球定位系统(GPS)信号的带内干扰的方法,系统和计算机可读介质
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摘要
Methods, systems, and computer readable media for mitigation of interference of GPS signals are disclosed providing selective mitigation of in- band interference implementing deterministic phase control. In one embodiment, a system for mitigating interference of GPS signals includes a pair of antennas, each receiving GPS signals that include both a desired signal component and a jammer signal component. The signal from one antenna is phase-shifted as needed to make it anti-phase with the signal from the other antenna, so that when the two signals are combined, the jammer signal components substantially cancel each other, leaving the desired signal components. Determining the phase shift required involves deterministically calculating the phase shift based on the amplitudes of the two input signals and the amplitude of the combined signal instead of the iterative techniques used in conventional systems.
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