摘要
为实现圆形预测飞行路径透视显示方法在纵向上满足"以飞行员为中心"的要求,同时克服扰动灵敏度大的缺点,采用了基于q反馈的改进型透视路径显示方法。将圆形预测飞行路径显示方法应用于纵向通道的设计,指出了控制系统—飞机本体在中频段不满足K/s特性,并且较大的γ反馈也会导致系统抗干扰性差,不满足人工控制理论的相关要求。为了改善系统的K/s特性和抗干扰性,采用q反馈回路替代原来的γ反馈回路。对比分析和仿真表明,改进型比传统型的显示方法有效地克服了纵向圆形预测显示方法扰动灵敏度大的缺点,极大地改善了人机闭环系统的性能。
In order to meet the pilot-centered requirement in longitudinal Circular Perspective Flight-path Predictor（CPFP） display and to overcome its oversensitivity to disturbance,an improved perspective flight-path predictor display approach based on q-feedback theory was presented.In the application of CPFP display method in the design of longitudinal control,the deficiencies of predictor-aircraft system,i.e.,not satisfying the K/s characteristic in intermediate frequency band and the worsen anti-disturbance characteristic due to relatively large γ feedback,were analyzed.The system could not meet the relative requirements of manual control theory due to such deficiencies.The q-feedback loop method was adopted in place of previous-feedback loop to solve the problem.Analysis and simulation result showed that the improved approach can overcome the weakness of the longitudinal CPFP display method and can improve man-machine closed loop performance greatly.
出处
《电光与控制》
北大核心
2010年第8期83-86,共4页
Electronics Optics & Control
