ID 原文 译文
11464 针对强噪声环境中弹道目标径向长度提取困难的问题,提出了一种基于最优路径的弹道目标径向长度提取方法。 In view of the strong noise environment ballistic target radial length extraction difficult problem, put forward a kind of based on the optimal path of ballistic target radial length extraction method.
11465 首先对目标距离像进行时间积累,得到一维距离像时间序列,然后分别计算每相邻帧的距离像中各个像素之间转移的幅度代价函数和路径代价函数。 ‭The target distance as time to accumulate in the first place, get a d distance as time sequence, and then calculate the distance of each adjacent frames as transfer between each pixel in the magnitude of the cost function and the path cost function.
11466 根据总代价函数的大小判断各散射中心的相关性,搜索得到一条代价函数最小的路径即最优路径,确定目标头部和尾部散射中心的位置,进而得到各个时刻目标径向长度。 According to the size of the total cost function to judge the correlation of each scattering center, the search for a cost function minimum path that is the optimal path, determine target head and tail of scattering center position, each time the target radial length is obtained.
11467 该方法算法简单,在强噪声环境中也能保证较高的正确率。 ‭The method is simple in algorithm, in strong noise environment also can guarantee higher accuracy.
11468 对仿真和模拟测试数据的分析处理验证了该方法的有效性。 ‭The analysis of simulation and simulated test data processing proves the effectiveness of the method. ‭
11469 通过分析欺骗信号对目标接收机时钟频漂的影响,建立被欺骗目标接收机在匀速圆周运动条件下的时钟频漂模型,将其与单位余弦函数进行圆相关。 Through analyzing target deception signals on the influence of the receiver clock frequency drift, establish cheated target under the condition of uniform circular motion of the receiver clock frequency drift model, cosine function with the unit circle.
11470 通过检测归一化相关值可以成功实现对欺骗干扰信号的检测,同时有效避免了虚警的发生; ‭ By measuring the normalized correlation value can be successfully implemented to detect deception jamming signal, effectively prevent the occurrence of a false alarm at the same time;
11471 通过对相关相位及相关峰值分析处理可以解算出欺骗信号的方位角及仰角,仿真表明对方位角和仰角的估计误差在1°以内。 ‭Through analyzing related peak phase and related processing calculated can deceive signal of azimuth and elevation Angle, the simulation shows that the azimuth and elevation Angle estimation error within 1 °.
11472 该算法可行性较强,具有重要的理论价值和应用价值。 The algorithm feasibility is stronger, has important theoretical value and application value.
11473 计划评审技术(program evaluation and review technique,PERT)自提出以来被广泛用于具有不确定时间参数项目的分析评估中。 Plan review technique (program evaluation and review technique, PERT) is widely used to put forward with uncertain time parameters in evaluation of the project.