ID 原文 译文
10174 最后采用距离比和几何一致性准则剔除错误匹配的特征点对,实现图像匹配。 Then using distance ratio and geometric consistency criterion, to eliminate error matching feature points, to achieve image matching.
10175 实验结果表明,改进算法对SAR图像在旋转、光照、尺度变化等情况下都有很好的匹配效果,并且降低了计算复杂度,有较强的鲁棒性和实时性。 ‭The experimental results show that the improved algorithm of SAR image in cases such as rotation, illumination, dimension change have good matching effect, and reduces the computational complexity, strong robustness and real-time performance. ‭
10176 提出了一种基于三次相位变换(cubic phase transform,CPT)和重构相位函数(reconstructing phase function,RPF)的空中高机动目标参数估计方法。 Is proposed based on a three phase transformation (cubic phase transform, CPT) and refactoring phase function (reconstructing phase function, RPF) air high maneuvering target parameter estimation method.
10177 为了实现目标高阶参数的估计,该方法首先通过双线性变换求得接收信号的相位函数,实现信号降阶和待估参数的分离; In order to achieve the goal of higher order parameter estimates, the method is firstly obtained by bilinear transformation of received signal phase function, a reduced order and realize signal separation of be estimated parameters;
10178 然后利用多阵元采样重构参考阵元的相位函数,等效增加了参考阵元相位函数的时间采样,实现了参考相位函数的相干积累; Arrays and use more sampling reconstruction phase function of reference and reference array yuan more equivalent time sampling phase function, to realize the coherent accumulation of reference phase function;
10179 最后进行参数估计。 The last parameter estimation.
10180 仿真结果表明,在输入信噪比较低、采样脉冲较少的情况下,该算法能够以较高的精度实现对高机动目标的参数估计。 The simulation results show that the input low signal noise ratio (SNR) and under the condition of less sampling pulse, the algorithm can be implemented with high accuracy parameter estimation of high maneuvering target.
10181 安装二维弹道修正引信后大口径榴弹的弹道特性发生了较大变化,偏流等弹道特性和修正控制机理的研究是面临的重要问题。 After installation of the two-dimensional trajectory correction fuze large changes have taken place in the ballistic characteristics of large caliber grenade, bias current and ballistic characteristics and correction control mechanism research is an important problem facing.
10182 针对该问题,基于双旋弹丸的攻角方程,通过无控和有控两种状态下动力平衡角和偏流解析表达式的推导,定性分析了偏流的影响因素,并采用系数冻结法给出了偏流的定量计算方法。 ‭Aiming at this problem, based on the twin twist Angle of attack of the projectile equations, two kinds of control through has no control and dynamic balance Angle and deviation analytic expression is derived, the qualitative analysis the influence of flow deviation factors, and USES the coefficient freezing method gives a quantitative calculation of flow deviation method.
10183 通过分析有控状态下控制力项对动力平衡角和攻角变化的影响,研究了修正控制对偏流的影响规律。 ‭By analyzing the control mode control for the balance of power Angle and changes in the Angle of attack, revision control is studied on the influence law of flow deviation.