基于飞机散射信号的干扰源定位算法

发布时间：2018-06-14 19:46

本文选题：多普勒频移 + 相关系数　；参考：《系统工程与电子技术》2014年12期

【摘要】：地面无线电干扰源是威胁民航通信安全的重要因素,为了快速准确地定位地面干扰源,提出了一种新的基于飞机散射信号的干扰源位置估计方法。首先,根据多普勒频移特征选取若干相关系数最大值参考点;然后,利用加权质心法通过选中的参考点估计干扰源的位置;深入讨论了参考点点数与定位精度之间的关系以及最大相关系数灵敏度与定位精度之间的关系。仿真实验结果表明,与已有方法相比,在不同噪声条件下,所提方法定位精度更高,且计算复杂度较低。
[Abstract]:Ground radio interference source is an important factor threatening the safety of civil aviation communication. In order to locate the ground interference source quickly and accurately, a new method based on aircraft scattering signal is proposed to estimate the location of the interference source. Firstly, several reference points of the maximum correlation coefficient are selected according to the Doppler frequency shift feature, and then the position of the interference source is estimated by the weighted centroid method through the selected reference points. The relationship between the number of reference points and the positioning accuracy and the relationship between the sensitivity of the maximum correlation coefficient and the location accuracy are discussed in depth. The simulation results show that the proposed method has higher accuracy and lower computational complexity under different noise conditions than the existing methods.
【作者单位】：大连理工大学电子信息与电气工程学部;国家无线电监测中心;北京邮电大学信息与通信工程学院;
【基金】：国家自然科学基金(61139001,61172108,81241059)资助课题
【分类号】：V243.1;TN972

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