摘要
论述信号噪声比和信号噪声密度比的概念,分析了射频干扰(RFI)对GPS接收的影响,最后说明了直接检测RFI的方法以及RFI源的定位。
Operation of GPS receiver is dependent upon the external radio frequency signal, and therefore is liable to be affected by radio frequency interference (RFI). It is possible that the RFI results in navigation accuracy degradation or receiver tracking loss. In this paper, the concepts of signal-to-noise ratio and the signal-to-noise density ratio are introduced at first. Then, the influence of RFI on GPS reception is analyzed. Finally, the method of directly detecting RFI and locating the source of RFI is illuminated.
出处
《信息与电子工程》
2003年第3期75-79,共5页
information and electronic engineering
