基于FM无线信号的定位系统设计与实现

Design and Implementation of Positioning System Based on FM Wireless Signal

笔者考虑在特殊时期导航卫星被屏蔽的情况下,提出了一种使用调频广播(FM)无线信号特征来完成定位的算法,该算法通过将位置指纹、卡尔曼滤波、余弦相似性等方法结合,取得了较好的定位精度和鲁棒效果,通过实际的实验,采取交叉验证的方法,验证了算法的有效性,同时,由于FM无线信号的穿透特性,该定位方法同样适用于室内场景。

In the case of the shielding of the navigation satellite in a special period,an algorithm using the characteristics of the FM radio signal to complete the location is proposed.By combining the location fingerprint,Calman filter and cosine similarity,the algorithm has achieved good localization precision and robust effect,and through actual reality.A cross validation method is used to verify the effectiveness of the algorithm.At the same time,the location method is also suitable for indoor scene because of the penetration characteristics of FM wireless signal.