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本文讨论了一个能拦截高空高速目标、并带有自适应实时估算电路的自动记忆电路。这个自适应实时估算电路带有适用于各种环境的卡尔曼滤波器组合。卡尔曼滤波器组合中有一个能在飞行中进行天线罩误差校正的记忆程序,而天线罩误差的补偿是在倾斜转弯的BTT导弹的制导系统的回路中进行,这样可以得到满意的脱靶距离的性能指标。在制导系统和自动驾驶仪的指令中包含有天线罩误差斜率的估算值,这样可以为一个修正的比例导航系统和一个最佳的控制器提供最佳的俯仰速率补偿。在这个修正的比例导航系统中已经推导出一个解析的表达式,在理论上该式是按最佳控制规律引入俯仰速率补偿。上述的天线罩误差补偿取决于制导指令产生的导弹的俯仰角速度,同时又考虑了带有天线罩误差的视线角速度。初步的结果表明天线罩误差的补偿可以便脱靶距离和俯仰角速度的时间特性得到明显的改善。卡尔曼滤波器组合用来提高天线罩斜率估算时的动态响应的时间特性。和其它自适应方案相比,它的主要的、独特的一点是在计算临界的后验概率的加权系数时,使用了测量——预测——测量技术,一个随机过程的半马尔可夫统计法通常有中间预测的步骤。对一个误差斜率变化较大的天线罩的数字模拟的结果表明:该方法是十分成功的。在补偿方案用于滚动通道的三维拦截目标的模拟中,就要进一步扩展上述的天线罩误差校正和补偿方案。
This article discusses an automatic memory circuit that intercepts high-speed, high-speed targets and has an adaptive real-time evaluation circuit. This adaptive real-time estimation circuit comes with a Kalman filter combination for a variety of environments. In the Kalman filter combination there is a memory program to correct the radome error in flight while the compensation of the radome error is performed in the loop of the BTT missile guidance system with a pitch turn so that a satisfactory off-target distance Performance. The guidance system and autopilot commands include estimates of the radome error slope to provide the optimum pitch rate compensation for a modified proportional navigation system and an optimal controller. In this modified proportional navigation system, an analytical expression has been derived that, in theory, introduces pitch rate compensation in the best control law. The above-mentioned compensation of the radome depends on the pitch velocity of the missile generated by the guidance command, and at the same time, the viewing angular velocity with the radome error is taken into account. The preliminary results show that compensation of the radome can obviously improve the time characteristics of off-target distance and pitch velocity. The Kalman filter combination is used to improve the time response of the dynamic response when the radome’s slope is estimated. Its main and unique point compared to other adaptive schemes is the use of measurement-prediction-measurement techniques, a stochastic process semi-Markov statistical method in calculating the weighted coefficients of the critical posteriori probabilities There are usually intermediate prediction steps. The numerical simulation of a radome with a large change in slope of error shows that this method is very successful. In the simulation of the compensation scheme applied to the three-dimensional interception target of the rolling channel, the above-mentioned radome error correction and compensation scheme is further expanded.