光电对抗平台高精度平稳跟踪技术

High-precision stable tracking technique of electro-optical countermeasures platform

针对某光电对抗平台跟踪精度高、跟踪平稳连续的要求,提出了基于PI-P调节器的复合控制技术,具有结构简单、抗负载扰动能力强、控制平稳等特点,保证了系统的高精度跟踪;通过先对视频跟踪器数据进行合理性检验,然后与外部引导数据进行数据融合的方法,剔除干扰,提高对机动目标位置预测的可信度和准确度,保证目标跟踪的连续性和平稳性。实验结果表明,该方法满足系统高精度、平稳连续跟踪的要求,在保精度角速度20(°)/s,保精度角加速精度25(°)/s2时跟踪最大误差小于2′,该系统具有广泛的适用性。

In order to meet the requirements of an electro-optical countermeasures platform for high precision and smooth continuous tracking, a controller based on PI-P composite control technique was proposed. It had the advantage of simple structure and high resistance to load disturbances as well as smooth control and ensured tracking precision. On the other hand, by the method of checking the rationality of the miss distance signals of the video tracking processor firstly, then fuse the video tracking data with the external guiding data, it was able to remove interference and improve the reliability and prediction accuracy of the future position of the mobile target so as to ensure the continuity and the tracking stability. Experimental results show that the system can meet the demand of smooth and continuous tracking, at the accuracy-guaranteed angular velocity of 20 （°）/s and the accuracy-guaranteed angular acceleration of 25 （°）/s2. The tracking precision is less than 2＇, and the system has wide adaptability.