基于组合Hough变换的精密进场雷达航迹起始算法

Precise Approaching Radar Track Initiation Algorithm Based on Combinatorial Hough Transform

针对三坐标雷达监测空间中航迹起始问题,结合以往的算法,提出一种基于组合Hough变换的三维航迹起始算法。首先将三维量测数据在3个投影平面上进行投影,然后对3个投影平面内的点分别进行组合Hough变换,对3个平面内组合Hough变换的结果进行比对,当相同的点迹至少在2个平面内起始成功时,即判断直线航迹起始成功。在数据处理过程中,使用三步组合的方法以加大真实航迹起始概率,并用飞机的运动速度对组合数量进行约束,降低了运算量。针对精密进场雷达的数据特点进行仿真验证,证明了算法的有效性。

A three-dimensional track initiation algorithm was proposed based on combinatorial Hough transform and traditional method to solve the problem about 3 D radar track initiation. First, the measurement data was projected on three planes, then the combinatorial Hough transform was used to the points on three projection planes respectively. When the same point trail was initiated successfully in two projection planes at least after comparing the results on the three projection planes, the straight-line track initiation was judged successfully. In the data processing, the real track initiation probability was increased using the three-step combination method, and a plane kinematics speed was used to depress the combination number and reduce computational complexity greatly. Simulation in allusion to precise approaching radar data characteristic shows the effectiveness of this algorithm.