摘要
为了提高卫星干扰源测时差定位的性能,提出了四阶累积量时间差(TDOA)估计优化算法。该方法利用高阶累积量的特性,在低信噪比、非相关或相关噪声环境下,对接收信号到达时间差做出精确估计,有效提高了卫星干扰源定位的性能。仿真结果验证了该算法的准确性和有效性。
In order to improve the function of TDOA estimation in satellite jamming emitter location, an optimize estimation algorithm based on fourth-order cumulant is presented. With the characteristics of high order cumulant, the algorithm could accurately estimate TDOA of the received signal under low SNR, uncorrelated or correlated noise condition. Simulation results prove its accuracy and efficiency.
出处
《航天电子对抗》
2007年第5期8-11,共4页
Aerospace Electronic Warfare
基金
重庆市自然科学基金项目(CSTC
2007BB6106)
关键词
卫星干扰源定位
到达时间差
信噪比
四阶累积量
satellite jamming emitter location
time-delay of arrival（TDOA）
SNR
fourth-order cumulant
