ID 原文 译文
9644 对于空间旋转对称进动目标,单部雷达成像仅能获得目标在雷达视线(line of sight,LOS)方向的一个切面,无法反映目标真实的三维结构,同时进动增加了成像的复杂度。 Rotational symmetry precession for space target, single radar imaging can only obtain the radar line of sight (line of sight, LOS) in the direction of a plane, can't reflect the actual three-dimensional structure of the target, at the same time increased the complexity of the imaging precession.
9645 利用组网雷达多视角观测的特点,提出一种基于组网雷达的旋转对称进动目标三维重构方法。 ‭Advantage of the characteristics of netted radar observations of multiple points of view, this paper puts forward a netted radar based rotational symmetry precession target 3 d reconstruction method.
9646 首先建立了旋转对称进动目标的回波模型;‭在估计视线-轴线夹角的基础上,采用复数逆投影方法实现进动目标的二维成像,并分析了允许的夹角误差范围;‭ ‭First rotational symmetry into moving target echo model is established; ‭In estimating the line of sight - axis Angle, on the basis of the plural inverse projection method was adopted to realize precession target of 2 d imaging, and analyzes the allowed error range Angle;
9647 基于分布式雷达二维图像,提出一种适用于旋转对称目标的三维重构方法,通过对各二维图像进行空间定标、匹配融合、强点检测和曲线圆拟合,最终实现目标的三维重构; Based on distributed radar two-dimensional image, the paper puts forward a kind of suitable for 3 d reconstruction method of the rotational symmetry target through space in the two-dimensional image scaling, matching fusion, better detection and curve fitting, finally achieve the goal of 3 d reconstruction;
9648 ‭最后通过仿真实验初步验证了该方法的有效性。 Finally, preliminary simulation results demonstrated the effectiveness of the method.
9649 无人机利用视觉在未知区域自主着降时,提取的特征点具有数量多、随机性强等特点。 Unmanned aerial vehicle (uav) using visual independent when the drop in unknown area, the extracted feature points has many characteristics, such as quantity, strong randomness.
9650 针对利用随机特征点进行位姿估计精度低、稳定性差的问题,提出一种基于矢量约束的随机特征点选取算法。 For using random feature points to pose estimation precision is low, the stability problem, put forward a kind of random feature point selection method based on vector constraints.
9651 首先通过分析位姿估计方程可知,特征点地理坐标是影响方程组求解精度的重要因素; First, by analyzing the pose estimation equation, the characteristic points geographic coordinates are important factors affected the accuracy of equations to solve;
9652 然后在引入矢量角均分度、矢量模值均值及矢量模值最大值三项约束指标基础上,制定了一种基于矢量约束的特征点选取策略; Then divide the introduction of vector Angle and the mean vector modulus value and vector modulus maximum value index based on the three constraints, developed a kind of feature point selection strategy based on vector constraints;
9653 最后利用正交迭代算法对所选取的特征点进行位姿估计精度验证。 Finally using orthogonal iteration algorithm for the characteristics of the selected point verifies the pose estimation precision.