无线电工程2025，Vol.55Issue(6)：1223-1229,7.DOI:10.3969/j.issn.1003-3106.2025.06.009
基于信号高阶累积量的无人机信号盲侦测方法
Unmanned Aerial Vehicle Signal Blind Detection Method Based on Signal High-order Cumulant
史方明 1陈格格 1陈祎 1邓磊 1秦令令 1赵勇武1
作者信息
- 1. 上海无线电设备研究所,上海 201100
- 折叠
摘要
Abstract
For the problem of signal detection and identification in the field of blind detection for non-cooperative UAVs,a method of UAVs signal blind detection based on signal higher-order cumulants is proposed after analyzing the characteristics of time-frequency domain and higher-order cumulants of image transmission signal.In this method,the time-frequency domain conversion of the signal is completed under the Short-Time Fourier Transform(STFT)channelized structure.Then,the mean value of the power spectrum is calculated to generate a dynamic detection threshold to determine the existence of the signal,the number of signals and the bandwidth information.Also,the kurtosis characteristics are calculated according to the power spectrum.Finally,the existence of the signal,the signal bandwidth and the kurtosis value are three dimensions to determine whether the UAV image transmission signal exists.The effectiveness of this method is verified by collecting real UAV signals and conducting digital simulations.关键词
信道化/图传信号/盲侦测/峰度值Key words
channelization/image transmission signal/blind detection/kurtosis value分类
信息技术与安全科学引用本文复制引用
史方明,陈格格,陈祎,邓磊,秦令令,赵勇武..基于信号高阶累积量的无人机信号盲侦测方法[J].无线电工程,2025,55(6):1223-1229,7.
