ID 原文 译文
13074 该方法适用于任意极化敏感阵列，在距离一多普勒域单快拍条件下，其估计性 能优于传统方法，且计算复杂度极低，可以实现实时处理。 For arbitrary polarzation—sensitive arrays, the performance of estimation is better than that of traditional methods under the condition of single snapshot in range-Doppler domain, and the computatonal complexity is very low, so real-time processing can be realized.
13075 仿真结果和某HFSWR系统实测数据处理结果表明了参数估计方法的有效性。 The simulation results and the data processing results of a HFSWR system show that the parameter estimation method is effective.
13076 极化合成孔径雷达(synthetic aperture radar, SAR)包含了丰富的目标散射信息，已被广泛用于海上船只检测。 Polar imetrc synthetc aperture radar (SAR) has been widely used in maritime ship detection due to ts abundant target scattering informaton.
13077 文中将机器视觉中基于残差谱视觉显著性区域提取方法扩展到极化/AR船只检测。 In ths paper, the vsual salency regon extracton method based on residual spectrum in machine vision is extended to Pol-SAR ship detection.
13078 首先，全面分析/AR极化特征的船海区分能力，利用5景RADARSAT-2全极化数据，对比5种极化特征的船海欧式距离、巴氏距离和对比度，筛选出16个船海对比度大于20 dB的极化特征。 Firstly, the ship discrimination ability of SAR polarimetric features is analyzed, and 5 RADARSAT-2 full-polarization data are used to compare with the Euc i idean distance, Bhattacharyya distance and ship-sea contrast of !5 polarization features, then, 16 polarimetric features with the contrast greater than 20 dB are selected.
13079 其次，挑选出适用于残差谱显著性区域提取船只检测的极化特征组合，通过特征间互信息、图像对数谱特性分析，确定利用相干矩 阵的三个幅度极化特征组合成RGB图像进行船只检测。 Secondly, the combination of polarimetric features suitable for the saliency regional method of residual spectral is picked out. Based on the analysis of the mutua ! information of features and the logarithmic spectrum characteristics of the image, three amplitude features of the coherent matrix are selected and combined into RGB images for ship detection.
13080 最后，将本文方法与基于恒虚警率的方法比较。 Finally, the method presented is compared with the traditional constant falsealarm rate (CFAR) method.
13081 在测试图像中，传统方法的品质因数小于0.9，本文方法的品质因数为0.95。 The figure of merit of the method in this paper is 0. 95 while the value of traditional CFAR method is less than 0.9.
13082 本文方法能够很好地抑制虚警, 同时还可直接提取出目标的轮廓等几何信息，具有一定的应用前景。 The result shows that the false alarm can be restrained welL and geometric information such as the contour of target can be directly extracted, the method has certain application prospect.
13083 对海雷达回波极化特性研究是对海雷达目标识别以及抗干扰技术发展的基础。 Investigation of the polarization characteristics of maritime radar echoes is the foundation of radar target recogntion and interference suppression.