排序方式: 共有5条查询结果,搜索用时 0 毫秒
1
1.
2.
3.
By analyzing the correlation between modal calculations and modal experiments of a typical support-er, an effeetive finite element analysis(FEA) model of the aetual aerospaee supporter is ereated. According to the analysis of eonstrained viseoelastic damping, the strategies of PVC have been worked out, and the correlation between modal ealculations and modal experiments of the supporter has also been eomputed, and then, an experiment has been designed based on the ealculation results. The results of experiments verify thai the PVCstrategy can effectively suppress vibration. 相似文献
4.
5.
随着低成本小型无人机的普及带来了一系列的严重问题并且难以监管。并且,由于环境物体的扰动、摄像机的抖动及采样噪声等因素导致现有方法在可见光图像下对无人机等小目标检测准确率低。针对上述问题,提出了一种基于随机森林的无人机检测方法。该方法采集可见光下的图像序列,使用混合高斯模型和聚类检测算法检测图像中的运动小目标,继而通过随机森林算法融合目标的多种特征进行目标的判别,最终得到检测目标。实验结果表明,该方法可有效地检测出无人机运动小目标并大幅提高检测的精确率。 相似文献
1