异地配置的雷达与电子支援措施异步航迹关联

针对异步条件下雷达与电子支援措施(electronic support measurements, ESM)航迹关联问题, 通过分析方位角异步测量值对交叉定位原理的影响, 提出一种无需时域配准的航迹关联算法。根据传感器存在时延以及采样率的不同, 给出不等长航迹序列的等长区间变换以及异步航迹交叉定位的区间化方法, 通过计算区间序列离散度实现异类传感器航迹关联。通过仿真验证, 区间序列离散度不受噪声分布的影响, 且对数据集整体特征的求解避免了传统算法中的逐点运算, 有效提高了算法运算率。与传统算法相比, 可在多种测量误差场景下对异步航迹直接进行准确关联。

Asynchronous track association of radar and electronic support measurements at different sites

Aiming at the problem of radar and electronic support measurement(ESM)track correlation under asynchronous conditions,a track correlation algorithm without time domain registration is proposed by analyzing the influence of asynchronous measurement values of the azimuth on the principle of cross location.According to the difference of sensor’s delay and sampling rate,the isometric interval transformation of the unequal length track sequence and the interval method of asynchronous track cross location are presented.Track correlation of heterogeneous sensors is realized by calculating interval sequence discrete degree.Through simulation verification,the interval sequence discrete degree is not affected by the noise distribution,and the solution of the overall characteristics of the data set avoids the point-by-point operation in the traditional algorithm,which effectively improves the algorithm calculation rate.Compared with the traditional algorithm,the asynchronous track can be correlated directly and accurately under a variety of measurement error scenarios.