ID 原文 译文
50457 利用美国UAVSAR系统采集的全极化SAR实测数据进行实验，结果表明，本文算法能有效检测出地物的变化情况，且检测虚警少、轮廓清晰。 Using the UAVSAR system to collect the whole polarization SAR measured data of experiment, the results show that this algorithm can effectively detect the changes of the terrain, and low detection false alarm, clear outline.
50458 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.
50459 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， The target distance as time to accumulate in the first place, get a d distance as time sequence,
50460 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， 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,
50461 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， 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,
50462 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。 determine target head and tail of scattering center position, each time the target radial length is obtained.
50463 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.
50464 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.
50465 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,
50466 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;