ID 原文 译文
23305 基于二元正交矩阵，首先构造得到了一类相互正交的非周期互补序列集，进而构造了相互正交的二元零相关区序列集，每个序列集参数都是最佳的。 Based on binary orthogonal matrices, numbers of mutually orthogonal aperiodic complementary sequence sets are constructed at first, then mutually orthogonal ZCZ sequence sets are obtained from these aperiodic complementary sequence sets. Each ZCZ sequence set is an optimal binary ZCZ sequence set.
23306 同已有方法相比，该文方法能生成更多的相互正交的二元零相关区序列集，解决了集合数目大于 2 且相互正交的最佳二元零相关区序列集构造问题，可以为准同步码分多址系统提供更多的序列。 Compared with existing methods, the presented construction produces more mutually orthogonal ZCZ sequence sets. As a result, the problem of constructing more than two optimal mutually orthogonal sets of binary ZCZ sequences is sloved by the presented approach and more sequences are produced for Quasi-Synchronous Code Division Multiple Access (QS-CDMA) systems.
23307 极化定标是目标检测、分类识别和定量反演等实际应用的重要前提。 Polarization calibration is an important prerequisite for practical application such as target detection, classification recognition and quantitative inversion.
23308 载机平台的姿态变化会引起极化指向角的变化，从而降低极化定标精度。 The attitude variance of carrier platform can cause variance of polarization orientation angle, thus reducing the polarization calibration precision.
23309 针对这一问题前人已提出了基于Whitt算法的改进算法。 Improved algorithms based on Whitt algorithm is proposed for this problem.
23310 该文详细分析了这些改进算法存在的问题，并在此基础上提出了一种考虑通道不平衡的逐脉冲补偿时变姿态的极化定标算法，能够有效地抑制姿态变化对极化定标的影响。 In this paper, the problem of these improved algorithms is analyzed in detail, and on this basis, a polarimatric calibration algorithm, which takes channel unbalance into consider and compensates the time-varying attitude pulse by pulse, is proposed, and it can effectively suppress the influence of attitude change on polarization calibration.
23311 仿真实验和实测数据处理验证了该算法的有效性。 Simulation results and experimental data processing verify the effectiveness of the proposed algorithm.
23312 弹载合成孔径雷达在子孔径信号处理时，由于运动的复杂性和距离方位的强耦合，增加了成像处理的难度。 In the missile borne subaperture SAR mode, the complicate motion of the platform and the strong coupling between range and azimuth present substantial difficulty for echo data processing.
23313 针对这一问题，该文分析了该成像体制下的距离徙动特性并引入二次调频函数进行统一距离徙动校正； To solve this problem, the range migration characteristics of the echo are analyzed and a secondary frequency function is introduced for uniform migration correction.
23314 在方位向处理上则通过频域投影补偿调频率空变。 During the azimuth processing, the azimuth frequency domain projection is applied to compensating the Doppler frequency modulation variation.