This paper aims to improve the anti-interference ability of the airborne radar stabilization platform, especially the ability to suppress continuous disturbance under complex air conditions to ensure the clarity and stability of airborne radar imaging.,This paper proposes a new active disturbance rejection control (ADRC) strategy based on the cascade extended state observer (ESO) for airborne radar stabilization platform, which adopts two first-order ESOs to estimate the angular velocity value and the angular position value of the stabilized platform. Then makes the error signal which subtracts the estimated value of ESO from the output signal of the tracking-differentiator as the input signal of the nonlinear state error feedback (NLSEF), and according to the output signal of the NLSEF and the value which dynamically compensated the total disturbances estimated by the two ESO to produce the final control signal.,The simulation results show that, compared with the classical ADRC, the ADRC based on the cascade ESO not only estimates the unknown disturbance more accurately but also improves the delay of disturbance observation effectively due to the increase of the order of the observer. In addition, compared with the classical PID control and the classical ADRC, it has made great progress in response performance and anti-interference ability, especially in the complex air conditions.,The originality of the paper is the adoption of a new ADRC control strategy based on the cascade ESO to ameliorate the anti-interference ability of the airborne radar stabilization platform, especially the ability to suppress continuous interference under complex air conditions.

中文翻译：

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基于级联扩展状态观测器的机载雷达稳定平台自抗扰控制策略

本文旨在提高机载雷达稳定平台的抗干扰能力，尤其是在复杂大气条件下抑制连续扰动的能力，以保证机载雷达成像的清晰度和稳定性。,本文提出了一种新的自抗扰控制（ ADRC) 机载雷达稳定平台基于级联扩展状态观测器 (ESO) 的策略，采用两个一阶 ESO 来估计稳定平台的角速度值和角位置值。然后将跟踪微分器的输出信号减去 ESO 估计值的误差信号作为非线性状态误差反馈 (NLSEF) 的输入信号，并根据 NLSEF 的输出信号和动态补偿两个 ESO 估计的总扰动的值产生最终控制信号。,仿真结果表明，与经典 ADRC 相比，基于级联 ESO 的 ADRC由于观测器阶数的增加，不仅更准确地估计了未知扰动，而且有效地改善了扰动观测的延迟。另外,与经典的PID控制和经典的ADRC相比,在响应性能和抗干扰能力上都有了很大的进步,尤其是在复杂的空气条件下。,论文的独创性是采用了一种新的ADRC控制策略基于级联ESO改善机载雷达稳定平台的抗干扰能力，