ID 原文 译文
55227 从相位梯度自聚焦算法的原理出发,阐释了多普勒偏置效应产生的原因。 Starting from the principle of phase gradient autofocus algorithm, explains the doppler offset cause from effect.
55228 进而,分析了多普勒偏置效应对散射中心距离徙动补偿的影响。 Then, the paper analyzes the doppler offset effect influence of the compensation for the scattering center distance migration.
55229 最后,提出了一种基于图像质量评价的多普勒偏置效应估计与补偿算法,并通过数值仿真分析和实测数据处理实验验证了本文分析结果的正确性。 Finally, put forward a kind of based on image quality evaluation of effect of doppler offset estimation and compensation algorithm, and through the numerical simulation analysis and the measured data processing results verify the correctness of the analysis results in this paper.
55230 针对无人机视觉着舰相对导航合作目标检测易受环境干扰问题,提出了一种面向近红外合作目标的鲁棒检测与匹配算法。 The relative navigation for uav visual carrier cooperation target detecting vulnerable to environmental disturbance, this paper proposes a robust detection and near infrared cooperation target oriented matching algorithm.
55231 首先,搭建了由850nm的近红外合作目标以及带有850nm滤镜摄像头组成的成像系统;然后,设计了基于几何约束的方法剔除合作目标图像中的异形干扰点,再利用Hu矩排除其中的相似干扰点;最后,利用形状上下文匹配算法解决拍摄图像中合作目标可能存在尺度、角度畸变使得合作目标难以匹配问题。 First of all, set up by near infrared cooperation goal and 850 nm with a 850 - nm filter composed of camera imaging system;Then, the design method based on geometric constraint eliminating abnormity in cooperation target image noise points, reusing similar Hu moment to eliminate the noise points;Finally, using of cooperative targets in images taken shape context matching algorithm to solve the possible scale, Angle distortion makes it hard for cooperation target matching problem.
55232 实验结果表明,所提出的方法可以在不同距离、不同光照、不同角度以及环境干扰下,实现合作目标鲁棒检测与匹配。 The experimental results show that the proposed method can be at different distances, different light and different angles and under the disturbance of environment, achieve cooperation robust detection and matching.
55233 针对部分转移概率未知的Markov跳变系统,研究了其鲁棒故障检测问题,设计了该系统的线性全阶鲁棒故障检测观测器。 For unknown part of the transition probability of Markov jump systems, the robust fault detection problem is studied, and the design of the system of linear order robust fault detection observer.
55234 将自由连接权矩阵引入鲁棒故障检测观测器系统进行证明推导,极大地降低了固定连接权矩阵带来的保守性。 Introducing free connection weight matrix is proved that the robust fault detection observer system, greatly reduce the fixed connection weight matrix of conservative.
55235 通过构造Lyapunov函数,推导得出一系列线性矩阵不等式以确保鲁棒故障检测观测器系统随机渐近稳定。 By constructing Lyapunov function, derived a series of linear matrix inequality (lmi) in order to ensure the robust fault detection observer system stochastic asymptotic stability.
55236 在此基础上,证明并给出了观测器存在的充分条件。 On this basis, the proof and a sufficient condition for the existence of the observer is presented.