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在伺服系统的传统设计方法里,关于前馈补偿量的选择,主要考虑的是补偿的精度和实现的代价,而没有定量考虑测量噪声的影响,本文从分析各种误差源入手,计算这些误差源对输出精度的影响,并且建立了用以衡量系统精度的评价函数,据此可对伺服系统里的前馈补偿量进行优选,文章对电视自动跟踪系统前馈补偿量的选择进行了较详细的讨论。
In the traditional design method of servo system, the choice of feedforward compensation amount mainly considers the accuracy of compensation and the cost of realization without quantitatively considering the influence of measurement noise. Starting from analyzing various error sources, this paper calculates these errors Source on the output accuracy, and the establishment of an evaluation function to measure the accuracy of the system, which can be based on the feedforward compensation in the servo system optimization, the article on the TV automatic tracking system, the choice of feedforward compensation carried out in more detail discussion.