ID 原文 译文
21185 然后，给出方案的选择明文攻击的安全证明和可验证性的安全证明。 Then, the formal security proofs of itsselective chosen plaintext attack security and verifiability are provided.
21186 之后，该文将转换阶段所需双线性对的计算量降为恒定常数。 After that, the improved offline/online ciphertext-plicy attribute-based encryption scheme with verifiable outsourced decryption is presented, which reduces the number of bilinear pairings from linear to constant in the transformation phase.
21187 最后，从理论和实验两方面对所提方案进行性能分析，实验结果表明该方案是有效且实用的。 Finally, the efficiency of the proposed scheme is analyzed and verified through theoretical analysis and experimental simulation. The experimental results show that the proposed scheme is efficient and practical.
21188 为了更好地将散射中心与目标结构联系起来，该文基于目标几何模型给出一种在单次和2次耦合散射机理下雷达目标部件级3维散射中心位置正向推算方法。 To link better scattering centers with target structures, a forward method is presented to deduce the component-level 3-D scattering center position of radar target under the mechanisms of single and double scattering based on target geometric model.
21189 重点探究了2次耦合散射机理下强散射情况的射线等效位置确定原理及方法。 Under the mechanism of double scattering, the principle andmethod for determining the ray equivalent position is introduced especially under the situation of strongscattering.
21190 对其他弱散射情况，应用等价变换等效为强散射情况。 As for other weak scattering situations, the equivalent transformation is used to transform the weakscattering situations to the strong one.
21191 最后，使用此位置推算方法推导并分析了直角二面角，钝角二面角，SLICY, T72坦克模型的部件级3维散射中心位置，并与相应的仿真或实测SAR图像进行比对以验证此位置推算方法的正确性。 Finally, this position derivation method is applied to the models of rightdihedral angle, obtuse dihedral angle, SLICY and T72 tank to deduce and analyze their component-levelscattering center positions. The corresponding simulated or actual SAR images are used for contrast to validatethe accuracy of the position derivation method.
21192 传统合成孔径雷达方位向分辨率仅由合成孔径提供，但在正前视区域多普勒分集有限，成像性能迅速下降且前视成像也存在固有的左右多普勒模糊问题。 The azimuth resolution of traditional synthetic aperture radar is only provided by synthetic aperture. However, in the forward looking area, the Doppler diversity is limited, so the imaging performance declinesrapidly.
21193 针对上述问题该文讨论前视多通道合成孔径雷达系统模型，提出一种理想直线航迹下空域零点约束自适应波束形成的成像方法， And forward looking imaging also has the Doppler ambiguity problem. In this paper, an adaptive beamforming method with spatial confinement under ideal line track is proposed.
21194 有效综合阵列实孔径和合成孔径提高正前视区域的成像质量，利用有限阵列空域自由度实现左右多普勒解模糊。 The imaging quality of the positive forward region is improved effectively by combining the array of real aperture and synthetic aperture, and the Doppler solution is blurred by using the array space domain.