飞行器转向时的航迹起始算法

Track Initiation Algorithm of Aircraft Steering Movement

在飞行器转向优化控制的研究中,传统的逻辑法在飞行器高速机动转向时因外推点与真实量测点距离偏大且跟踪波门偏小而丢失航迹真实量测点,从而导致雷达对观测目标航迹起始的失败。为了解决传统航迹起始算法所存在的问题,提出了采用修正外推点的方位角和放大的跟踪波门的改进的航迹起始算法。与传统算法相比,改进算法能够使目标的真实量测点更准确地落在雷达跟踪波门内。仿真比较和性能分析表明,上述算法对于提高飞行器等高速目标转向时航迹起始的正确率是有效和可行的。

The traditional logic -based algorithm is likely to lose track in the real measurement points of the air- craft when it turns the direction at a fast speed. This can be attributed to the long distance between extrapolation point and real measurement as well as the small gate in the track of target. In order to solve the problems of traditional track initiation algorithm, an improved track initiation method is presented. The algorithm modifies the azimuth of ex- trapolation point and improves the size of gate. Compared with the traditional algorithm, it enables real point to fall more accurately in the gate. The comparison of simulations along with performance analysis shows that the algorithm is effective in improving the accuracy of track initiation of the aircraft＇s steering movement.