ID 原文 译文
8004 然后,利用最小二乘支持向量机,分别进行多变量填补和单变量填补; Then, using the least squares support vector machine (SVM), multivariate fill and single variable fill respectively;
8005 第三,根据多变量和单变量填补结果的差异度,提出了一种组合阈值填补方法。 Third, according to the results of multivariate and univariate fill the difference degree, this paper proposes a combination fill threshold method.
8006 最后,对所提方法进行了实验验证,结果表明,它具有较高的填补精度且适用于缺失数据较多的场合。 Finally, the experiments have been carried out to verify the proposed method, the results show that it has higher filling accuracy and is suitable for the missing data more occasions.
8007 在外辐射源雷达中,用于接收直达波信号的参考天线不仅会接收基站的直达信号,同时还会不可避免地接收到经地面建筑等反射的强多路径信号,直接利用参考天线接收的参考信号与目标回波匹配积累会产生额外的检测峰值。 Radiation sources in the radar, used to receive direct wave signal of the reference antenna will not only receive direct signal base station, at the same time also will inevitably receives the ground buildings such as the reflection of the strong multipath signal, the reference signal and the direct use of a reference antenna target echo matching accumulation will produce extra peak detection.
8008 针对这个问题,提出了一种该场景下的外辐射雷达参考信号提纯方法。 Aiming at this problem, this paper proposes a reference radiation outside the radar signal under the scenario purification methods.
8009 首先,将回波信号投影至参考信号的子空间中提取回波信号中的直达波信号。 First of all, the echo signal projection to the reference signal subspace direct wave signal of echo signals are extracted.
8010 然后,利用此直达波信号对消参考信号中的干扰获取纯净的参考信号。 Then, using the direct wave signal interference cancellation of the reference signal to obtain pure reference signal.
8011 最后,利用纯净的参考信号与杂波抑制后的目标回波匹配得到检测结果。 Finally, after using pure reference signal and clutter suppression of target echo matching detection results are obtained.
8012 计算机仿真和理论分析表明,该方法具有较好的参考信号提纯性能。 Computer simulation and theoretical analysis show that the proposed method has better reference signal purification performance.
8013 针对相关干涉仪测向中相位差模糊导致的强非线性问题,提出一种基于高拉伸度的改进遗传算法。 In view of the correlation interferometer direction finding of the phase difference caused by fuzzy strongly nonlinear problems, put forward a kind of improved genetic algorithm based on high tensile strength.