基于DAC统计模型的卫星导航欺骗干扰检测
Detection of Spoofing of Satellite Navigation Receivers Based on Statistical Model of DAC

作者: 张 茴 , 孙闽红 , 王海泉 , 沈 雷 , 甘一鸣 :杭州电子科技大学通信工程学院,杭州; 邱 雨 :杭州谱恒科技有限公司,杭州;

关键词: 干扰识别欺骗干扰DAC统计建模Jamming Identification Spoofing Detection DAC Statistics Modeling

摘要:
针对欺骗干扰信号常在时域、频域和空域与真实信号重叠,导致识别欺骗干扰难度较大的问题,本文假定真实发射机与欺骗干扰机射频前端器件除数模转换器(DAC)外均工作于理想状态,提出了一种基于DAC建模的欺骗干扰识别方法。首先,利用积分非线性(INL)和差分非线性(DNL)对DAC的非线性进行统计建模,提取特征向量;其次,基于似然比检测和欧氏距离法实现欺骗干扰识别;最后,通过仿真实验验证了方法的有效性。

Abstract: Since real signals and spoofing signals are overlapped in time domain, frequency domain and time-frequency domain, it is not easy to distinguish them. In this paper, a new identification method based on the model of digital-to-analog converter (DAC) is proposed on a condition that the devices of transmitter and jammer are in desired state except the DAC. Firstly, the DAC is modeled with the integral non-linear (INL) and differential non-linear (DNL) to extract the parameter vector; secondly, the spoofing signals are identified by using a LRT detector and a naïve method; lastly, the effectiveness of the proposed method is verified via simulation.

文章引用: 张 茴 , 孙闽红 , 王海泉 , 沈 雷 , 邱 雨 , 甘一鸣 (2014) 基于DAC统计模型的卫星导航欺骗干扰检测。 无线通信, 4, 73-82. doi: 10.12677/HJWC.2014.45012

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