排序方式: 共有57条查询结果,搜索用时 171 毫秒
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雷达组网区域性防御区优化部署 总被引:8,自引:1,他引:7
对雷达网的费效比、数量、类型方面的优化部署进行了讨论。针对自卫压制式干扰或随队压制式干扰,给出一种采用不同频率的雷达利用不同位置进行优化部署的方法,并利用数据融合技术对这种部署方法进行讨论。 相似文献
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在防空导弹的发射过程中,需要在给定的响应时间内确定最优轨道,导弹沿此轨道在预定的时间飞达预测遭遇点.为了轨道优化的实时计算,构造了一类梯度投影下降算法,并且给出实际应用的具体步骤.对防空导弹运动的一个数学模型的数字仿真结果表明应用这些算法可以达到很高的控制精度. 相似文献
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Aiming at the problems of demagnetization effect of electromagnetic buffer (EMB) caused by high ve-locity under intensive impact load and the difficulty and error of machining composite thin-walled long tube, a segmented EMB is proposed. The inner tube and air-gap are divided into initial segments and the traversing segments. Through theoretical analysis, impact test and simulation, it can be found that the RRF curve has two peaks. Firstly, in order to reduce the resultant resistance force (RRF) peaks, the sensitivity analysis based on optimal Latin hypercube design (OLHD) and polynomial regression was performed. The results show that the smallest contribution ratio to the dynamic response is the seventh and ninth segments of the inner tube, which are less than 1%. Then, fully considering the uncertain factors, important parameters are selected for uncertain optimization after sensitivity analysis. The in-terval order and interval probability degree methods are used to establish interval uncertain optimiza-tion model of the RRF considering robustness. The model was solved using an interval nested optimization method based on radial basis function (RBF) neural network. Finally, the Pareto front is obtained and numerical simulation is performed to verify the optimal value. It indicates that the two kinds of RRF peak is obviously reduced, and the optimization object and strategy are effective. 相似文献
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战术MANET的QoS路由计算是一个NP完全问题,可以采用蚁群优化算法来求解.为了提高蚁群优化QoS路由算法的效率,降低时延和网络开销,提出了基于多态转移策略的蚁群优化QoS路由算法(MTS-AQRA).MTS-AQRA将链路稳定性和路由拥塞度与常规的QoS路由约束条件结合起来,利用多态转移策略产生的多样化路由搜索蚁群和并行路由搜索处理,能够在MANET网络中快速地建立满足业务QoS要求的稳定路由.仿真实验结果表明,MTS-AQRA在分组到达率、端到端时延、网络吞吐量等指标上综合性能优于AODV、AntHocNet、QoS-Aware ACO等路由算法. 相似文献
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针对高超声速滑翔飞行器复杂约束条件下多目标轨迹设计问题,基于边界交叉法和伪谱法提出了其多目标轨迹优化方法。首先,分析了高超声速滑翔飞行器复杂约束轨迹优化问题的特点,提出了多目标轨迹优化问题。然后,采用边界交叉法和伪谱法将多目标轨迹优化问题转化为一组单目标优化子问题,利用非线性规划算法分别求解。在优化过程中,将已求解子问题的解作为下一个子问题的初始值。利用上述方法求解了最大横程和最小峰值热流轨迹优化问题,仿真结果表明:本文方法能够有效搜索到优化轨迹的Pareto前沿,可以为高超声速滑翔飞行器轨迹设计提供参考。 相似文献
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