摘要
对于时宽带宽积较大的信号,以短基线即可获得高精度的时差,从而实现辐射源高精度定位。提出了一种基于单个运动平台的短基线到达时差(TDOA)定位体制,针对到达时差观测量与辐射源位置的高度非线性关系,提出了一种基于高斯牛顿迭代的定位解算方法,并对该定位理论误差下限(CRLB)进行了分析。计算机仿真对方法的收敛性能、定位误差进行了分析和验证。
Considering a signal with large time-bandwidth product, it is easy to obtain the TDOA of high precision with short baseline so that they can be utilized for emitter localization. A method utilizing the time difference of arrival （TDOA） of short baseline on single moving observer is proposed to determine the location of an emitter. Aiming at resolving the high degree of nonlinearity between the TDOA and the location of the e- mitter, the nonlinear gauss newton recursive algorithm is proposed. The CRLB of this localization method is then analyzed. Simulations by computer analyze the convergence and localization of the method and confirm the correctness of the method and conclusion.
出处
《航天电子对抗》
2016年第3期4-8,共5页
Aerospace Electronic Warfare
