基于TDOA的非同步照射辐射源定位算法
发布时间：2018-09-03 13:52
【摘要】：针对现有基于信号到达时差(TDOA)的定位算法难以适应辐射源信号非同步到达的定位问题,提出了一种新的非同步照射辐射源定位算法。该算法利用脉冲样本图外推各站辐射源脉冲的到达时间(TOA)序列,进而计算TDOA序列(TDOAs),解决了非同步照射引起的TDOA计算困难问题,通过两条双曲线的渐近线交点求取初值,通过牛顿迭代法实现对辐射源位置的估计。最后给出的数值仿真结果验证了该方法的有效性。
[Abstract]:Aiming at the problem that the existing localization algorithms based on time-of-arrival (TDOA) (TDOA) are difficult to adapt to the problem of non-synchronous arrival of emitter signals, a new localization algorithm for non-synchronous radiation emitter is proposed. In this algorithm, the arrival time (TOA) sequence of emitter pulse is extrapolated from the pulse sample diagram, and then the TDOA sequence (TDOAs), is calculated to solve the difficult problem of TDOA calculation caused by asynchronous irradiation. The initial value is obtained from the intersection point of two hyperbolic asymptotes. The position of emitter is estimated by Newton iteration method. Finally, the numerical simulation results show the effectiveness of the method.
【作者单位】： 电子工程学院;
【基金】：国家自然科学基金(No.61171170)
【分类号】：TN911.7
[Abstract]:Aiming at the problem that the existing localization algorithms based on time-of-arrival (TDOA) (TDOA) are difficult to adapt to the problem of non-synchronous arrival of emitter signals, a new localization algorithm for non-synchronous radiation emitter is proposed. In this algorithm, the arrival time (TOA) sequence of emitter pulse is extrapolated from the pulse sample diagram, and then the TDOA sequence (TDOAs), is calculated to solve the difficult problem of TDOA calculation caused by asynchronous irradiation. The initial value is obtained from the intersection point of two hyperbolic asymptotes. The position of emitter is estimated by Newton iteration method. Finally, the numerical simulation results show the effectiveness of the method.
【作者单位】： 电子工程学院;
【基金】：国家自然科学基金(No.61171170)
【分类号】：TN911.7
【参考文献】
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