ppn中文什么意思

退休金支付编号

• ppn-rda:    尼日尔进步党
• peripheral nutrition ppn:    外周静脉营养
• peripheral nutrition,ppn:    外周静脉营养

例句与用法

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1. Using the sampled controlling parameters of the aircraft under pure proportional navigation ( ppn ) , the thesis designs the corresponding discrete input signal of the guidance controller under the inside demand of the pursuing control , and trains a module of rbf off - line . then , the module is inserted into the control system of the aircraft and acted as its control input in order that the optimal function of the aircraft under ppn can be realized
   在分析比例导引律导引载机追踪/截获目标的状态轨迹的基础上,阐述径向基神经网络的非线性功能特点,根据载机追捕目标的内在要求,设计并训练径向神经网络模块,嵌入载机导引器的控制回路,实现优化载机导引控制。
2. The second part studies optimal pure proportional navigation ( ppn ) , with time - dependent gain of navigation to maneuvering target based on proportional navigation theory . optimal gain of navigation is constant for ppn without maneuvering ; based on this , solution of time - dependent gain of navigation is given by iteration approach , and the time required for capture is given , the times of iteration is decided by comparing this time with the iteration step
   对目标机动的追逃问题,考虑导航增益可为任意实数,且随时间和初始条件改变,这一思想是建立在目标非机动的纯比例导引制导规律,最佳导航增益为常数的基础之上,利用迭代的方法,给出了时变的导航增益的求解方法,并给出了实现捕获所需的时间,用此时间与迭代步长进行比较,判定迭代次数。