ID 原文 译文
23015 仿真和实测数据结果验证了该方法的正确性和有效性。 The simulated and experimental results demonstrate the validity and effectiveness of the proposed method.
23016 针对传统方法对线性调频(LFM)信号检测与参数估计运算量大的问题，该文提出一种基于高效 FrFT 的快速算法。 A fast algorithm based on the effective FrFT is proposed to realize the detection and parameter estimation of Linear Frequency Modulation (LFM) signal, since the traditional algorithms have a great computational burden.
23017 首先，分析了高效 FrFT 原理，指出高效 FrFT 存在旋转角度的选取、易受初始频率影响以及抗噪性能差等问题。 The effective FrFT is first analyzed, and pointed out to have problems in choosing the rotation angles, being easily affected by initial frequency, and poor anti-noise performance.
23018 针对以上问题，该文利用修正的功率谱平滑滤波方法对高效 FrFT 进行改进。 Faced with the above problems, a modified power spectrum smooth filtering method is used to improve the effective FrFT algorithm.
23019 理论分析表明，该文提出的改进算法仅用 3 次旋转角度即可实现较低信噪比下 LFM 信号的检测和参数估计。 The theoretical analysis indicates that the proposed method based on effective FrFT can realize the detection and parameter estimation of LFM signal in low SNR condition with only three rotation angles.
23020 与传统的 FrFT 相比，在保证参数估计精度不变的情况下，运算复杂度大大降低，更符合工程上实时处理的要求。 Furthermore, the computational cost is greatly reduced under the guarantee of the same parameter estimation accuracy compared to traditional FrFT.
23021 仿真结果验证了该算法的有效性。 The simulation results verify the effectiveness of the proposed algorithm.
23022 干涉合成孔径雷达测量地形高程时，复杂地形区域的干涉条纹过密会导致干涉相位解缠失败，从而使得无法精确获得地形高程信息。 When interferometric SAR is used to measure the terrain elevation, the dense interference fringes in the complex terrain will lead to phase unwrapping failure, so that the terrain elevation information can not be obtained accurately.
23023 该文提出一种降低错误解缠率的新方法，通过对干涉复图像进行增采样，使得干涉条纹相位梯度降低，从而降低相位滤波和相位解缠处理的难度，降低相位解缠的错误率。 In this paper, a new method to reduce the error rate of phase unwrapping is proposed. The interference fringe gradient is decreased by increasing the size of the interference complex image, and the difficulties of phase filtering and phase unwrapping is reduced.
23024 利用干涉复图像频率与 Nyquist频率之间的关系，进行所提方法对地形的适应性分析。 Based on the relationship between the complex image frequency and the Nyquist frequency, the adaptability of the proposed method to the terrain is analyzed.