ID |
原文 |
译文 |
11714 |
实验表明:空间敏感度热核特征的识别率高于热核不变量的识别率,并与经典的Hu不变矩特征比较,识别率有所提高。 |
Sensitivity experiment showed that the spatial characteristics of thermonuclear recognition rate is higher than thermonuclear invariant recognition rate, and compared with the classic Hu moment invariant features, recognition rate increased. |
11715 |
机载雷达回波数据非均匀会在很大程度上削弱传统空时自适应处理算法的杂波抑制性能。 |
Airborne radar echo data heterogeneous will to a great extent, weaken the traditional space-time adaptive processing clutter suppression performance of the algorithm. |
11716 |
为此,提出一种基于杂波脊先验信息的非均匀杂波抑制方法。 |
For this, put forward a kind of based on a priori knowledge about the clutter ridge inhomogeneous clutter suppression method. |
11717 |
利用机载雷达杂波信号在角度多普勒平面的谱分布信息构造导向矢量基,并在考虑阵元误差影响情况下,对待检测单元数据进行迭代的最小二乘拟合,最后对拟合后的剩余数据进行恒虚警检测处理。 |
Using airborne radar clutter signal in Angle in the plane of the doppler spectrum distribution information oriented vector base structure, and considering the array yuan error influence situation, treat the detection unit data iterative least square fitting, the last remaining after the fitting data constant false alarm detection processing. |
11718 |
该方法充分利用了雷达系统参数及杂波谱分布等先验信息,并且不需要训练样本,可以较好地抑制非均匀杂波,从而改善机载雷达的检测性能。 |
The method makes full use of the radar system parameters and spectrum distribution of a priori information, and does not require the training sample, can better suppress inhomogeneous clutter, thus improving the detection performance of airborne radar. |
11719 |
仿真实验验证了该方法的有效性。 |
The simulation results verify the effectiveness of the method. |
11720 |
针对机动航天器之间精确动态相对定位问题,提出一种基于强跟踪器(strong tracking filter,STF)的动态相对定位算法。 |
According to accurate dynamic relative positioning between motor vehicle problem, put forward a kind of based on strong tracking (strong tracking filter, STF) dynamic relative positioning algorithm. |
11721 |
该算法针对相对机动过程中3个方向的机动特性,设置三向渐消因子进行三向滤波,克服了单向渐消因子与实际机动不匹配而造成的跟踪精度下降问题。 |
In the process of the algorithm in view of the relative motor three direction of motor characteristics, set up three to the fading factor to filter, overcome the ChanXiangJian dissipation factor with the actual motor does not match the tracking precision of the decline in question. |
11722 |
针对三向滤波在直角坐标系下的跟踪问题,设置去偏转换测量算法,克服了球坐标系与直角坐标系的转换偏差问题。 |
For three to filter the tracking problem under the rectangular coordinate system, set to partial transformation measurement algorithm, overcame the ball coordinate system and right Angle coordinate system conversion of the deviation problem. |
11723 |
仿真实验表明,该算法在初值敏感性和相对机动恢复性上均强于其他算法,适用于脉冲推力、有限推力等多种情况下机动航天器间精确动态相对定位。 |
Simulation results show that the proposed algorithm on the initial value sensitivity and relative motor recovery is stronger than the other algorithms, suitable for impulse thrust, a variety of circumstances such as limited thrust between motor vehicle dynamic relative positioning precision. |