针对NARMA模型，提出了预测控制滚动优化的两级协调法。
A two level coordination algorithm is presented for moving horizon optimization of predictive control based on NARMA model.
采用小参数展开法和哑铃型模型法计算双星的引力辐射，并导出熟知的四极引力辐射功率表达式，数值计算所得的结果与天文观测的两级相自洽，且比其它的计算方法简便。
The method of small parameter and setting up model of dumbbells are used to calculate the gravitational radiation of Double Satellite, and the expression of quadrupole radiation power is obtained.
选拔算法是两级逻辑综合中求解最小化覆盖的经典方法之一，但在输出变量集合和质立方体集合规模较大的情况下，采用选拔法求最小化覆盖存在空间复杂度高、求解时间长等问题。
But as the output variables and the prime implicant grow up, both the long processing time and the resource requirement become the major problems to be resolved with the extraction method.
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