ID |
原文 |
译文 |
23315 |
与传统算法相比,新算法可对子孔径回波进行更有效的成像与聚焦,仿真结果证明了算法的正确性和有效性。 |
Compared with the traditional algorithm, this proposed algorithm can focus on the echo more effectively. Simulation results show the correctness and validity of the proposed algorithm. |
23316 |
等效视数(ENL)是极化 SAR 多视数据统计模型的重要参数。 |
Equivalent Number of Looks (ENL) is an important parameter in statistical modelling of multi-look Polarimetric SAR (PolSAR) data. |
23317 |
而一些极化 SAR 图像的自动化应用中,需要在没有人工干预下实现 ENL 非监督估计。 |
In some automated applications of PolSAR images, it is necessary to estimate the ENL in an unsupervised way without any manual intervention. |
23318 |
现有的等效视数非监督估计方法在异质程度较高的图像中就难以得到准确估计结果。 |
The existing unsupervised estimation of ENL can not obtain accurate estimates for the images with high heterogeneity. |
23319 |
针对这一问题,该文提出一种将混合区域剔除与纹理信息聚类相结合的等效视数非监督估计方法,有效地减弱了地物混合及纹理两类主要异质因素对估计结果的影响。 |
To address this issue, a novel unsupervised estimation method is proposed here. It combines the mixture elimination and clustering based on texture, which reduces the effect of two main heterogeneity factors, mixture and texture. |
23320 |
通过仿真数据和不同复杂度的实际图像验证了该方法的有效性。 |
The validity of this method is evaluated with simulated and real data of different complexity. |
23321 |
针对联合综合概率数据关联算法(JIPDA)存在的航迹合并问题,将目标建模为随机有限集(RFS)提出改进的 JIPDA 算法。 |
To avoid the track coalescence of the Joint Integrated Probabilistic Data Association (JIPDA), a modified version of JIPDA is proposed by modelling targets as Random Finite Set (RFS). |
23322 |
传统 JIPDA 首先产生初始概率密度函数(PDF),之后对该 PDF 进行近似来估计目标状态。 |
The JIPDA first generates the original Probability Density Function (PDF) and then makes an approximation of the PDF to estimate target states. |
23323 |
为了使目标状态估计 PDF 与初始 PDF 之间的相似性最大化,当目标标签无意义时,提出对 JIPDA 的初始 PDF 进行优化。 |
To maximize the similarity between the state estimate PDF and the original PDF, the original PDF is optimized when target label is irrelevant. |
23324 |
将 KL 散度作为相似性的衡量标准,建立起优化过程的代价函数。 |
Using the KL divergence as a measure of the similarity, the cost function is developed. |