ID 原文 译文
54117 对长时间SAR图像序列的分析结果表明，像素点的幅值会随时间发生较大的变化，导致采用固定的幅度离差门限来选择PS点时，各组PS点的数量会发生极大改变，严重影响形变测量的精度。 The analysis results of the long-term SAR image sequence show that the amplitude of the pixel points will change greatly over time, resulting in the use of a fixed amplitude deviation threshold to select PS points, the number of PS points in each group will change greatly and seriously affect the accuracy of deformation measurement.
54118 本文提出了一种基于K-Means(K均值)聚类的时序GB-InSAR图像PS实时选择方法， This paper proposes a real-time selection method of time series GB-InSAR image PS based on K-Means(K-means) clustering.
54119 首先对时序图像进行分组，然后利用各组图像的像素点幅度和相关系数，基于K-Means算法进行两级聚类。 First, the time series images are grouped, and then the pixel amplitude and correlation coefficient of each group of images are used, based on K-Means The algorithm performs two-level clustering.
54120 对一处露天矿坑实测数据的分析结果表明，本文方法在保证了各组图像的PS点足够多的同时，对PS点数量的稳定性也有大幅提高。 The analysis results of the measured data of an open-pit mine show that the method in this paper ensures that the PS points of each group of images are enough, and the stability of the number of PS points is also greatly improved.
54121 针对现有的方向不变波束形成算法在阵元个数确定以后，其波束的主瓣与旁瓣水平无法进一步改善的情形下。 For the existing steering invariant beamforming algorithm, after the number of elements is determined, the main lobe and side lobe levels of the beam cannot be further improved.
54122 本文基于均匀圆阵在现有方向不变波束形成方法的基础上，通过引入压缩感知理论(Compressed Sensing，CS)，提出了一种可以进一步改善波束主瓣与旁瓣水平的方法。 Based on the existing steering invariant beamforming methods of a uniform circular array and through introducing Compressed Sensing theory(Compressed Sensing, CS), this paper proposes a method that can further improve the level of the main and side lobes of the beam.
54123 该方法使用压缩感知理论对信号进行压缩采样和稀疏重构，并通过凸优化中二阶锥规划方法对恢复的信号进行方向不变波束形成，可以在不增加实际阵元数的前提下，增大阵列孔径，得到旁瓣水平更低和主瓣宽度更窄的波束图。 This method uses compressed sensing theory to compress the signal and sparsely reconstruct the signal, and uses the second-order cone programming method in the convex optimization to perform steering invariant beamforming on the recovered signal, which can increase the array aperture without increasing the actual number of elements, and can obtain a beam pattern with a lower side lobe level and a narrower main lobe width.
54124 仿真结果表明该方法在一定程度上提升了波束形成器的性能，在阵列信号处理方面具有一定的理论与实际意义。 Simulation results show that this method improves the performance of the beamformer to a certain extent, and it has certain theoretical and practical significance in array signal processing.
54125 相位编码(Phase Coded，PC)信号运用在高速运动平台和高速目标探测中存在多普勒敏感问题，制约了其在宽多普勒容限正交波形中的应用。 The use of Phase Coded(PC) signal in high-speed motion platforms and high-speed target detection has Doppler sensitivity problem, which restricts its application in wide Doppler tolerance orthogonal waveform.
54126 本文研究了一种基于线性调频(Linear Frequency Modulation，LFM)信号和PC信号复合调制的宽多普勒容限信号形式—LFM-PC信号，推导出了其脉间信号的模糊函数离散表达式， This paper studies a wide Doppler tolerance signal form based on hybrid modulation of Linear Frequency Modulation(LFM) signal and PC signal—LFM-PC signal, and deduces the discrete expression of the ambiguity function of its interpulse signal.