With the rate limiting element in man machine closed loop system, we analyse the PIO using the method of describing function.
然后将速率限制环节置于人机闭环系统中，利用描述函数法对驾驶员诱发振荡（ PIO）机理进行了研究。
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The summary has a analysis about the main factor about the influence on grinding machine grinding working rate, and have a summarize about the improvement method as well as the achievement.
It is the important method to realize the higher precision prediction and improve the utilizing rate. A support vector machine model is proposed to predict the VBR video traffic.