ID 原文 译文
20235 在微波光子雷达成像中，目标转动分量在回波包络中形成空变的距离弯曲项，在方位相位中形成空变的2次相位误差，导致ISAR图像散焦。 In the microwave photonics radar imaging, the rotational components result in range curvature and quadratic phase error changing with distance.
20236 该文针对微波光子雷达系统提出一种新的ISAR成像算法，该算法同时考虑了目标转动分量对回波包络和相位的影响， To solve this problem, an effective ISAR imaging algorithm is put forward which considers the influence of the target’s rotational component to echo envelope and phase.
20237 以包络相关值为目标函数值迭代估计目标转速，根据转速估计值，在距离向进行重采样对齐包络，在方位向构造空变的方位补偿函数校正转动相位。 The value of envelope correlation is take as objective function and the target’s rotate speed is estimated by iteration; The range curvature is corrected by time resampling; The quadratic phase error is compensated by azimuth compensation function.
20238 仿真和实测数据的处理结果证明了该算法的有效性。 Both simulated and real-measured data experimental results confirm the effectiveness of the proposed algorithm.
20239 为了满足时间延时积分(TDI)CMOS图像传感器转换全差分信号的需要，同时符合列并行电路列宽的限制，该文提出并实现了一种10 bit全差分双斜坡模数转换器(ADC)。 A 10 bit fully differential dual slope Analog-to-Digital Converter (ADC) for Time Delay Integration(TDI) CMOS image sensors is realized based on column-parallel single-slope ADC.
20240 在列并行单斜坡ADC的基础上，采用2个电容的上极板对差分输入进行采样，电容下极板接2个斜坡输出完成量化。 Top plates of the two capacitors are used for sampling differential inputs, and the bottom plates are connected to ramp generator for conversion.
20241 基于电流舵结构的斜坡发生器同时产生上升和下降斜坡，2个斜坡的台阶电压大小相等。 Current steering is used to generate the rising and falling ramp with the same step voltage simultaneously.
20242 该电路使用SMIC 0.18 μm CMOS工艺设计实现，ADC以19.49 kS/s的采样频率对1.32 kHz的输入进行采样，仿真得到无杂散动态范围和有效位数分别为87.92 dB和9.84 bit。 The proposed ADC is fabricated in SMIC 0.18 μm CMOS process. Simulated spurious free dynamic range and effective number of bits are 87.92 dB and 9.84 bit with the input frequency of 1.32 kHz at19.49 kS/s sampling rate, respectively.
20243 测试显示该ADC的微分非线性误差和积分非线性误差分别为–0.7/+0.6 LSB和–2.6/+2.1 LSB。 Measured results show that the ADC has a differential nonlinearity of–0.7/+0.6 LSB and integral nonlinearity of –2.6/+2.1 LSB.
20244 针对传统的模糊C-均值(FCM)算法没有考虑图像像素的空间邻域信息，对噪声敏感，算法收敛较慢等问题，该文提出一种抑制式非局部空间直觉模糊C-均值图像分割算法。 In order to deal with these issues of the traditional Fuzzy C-Means (FCM) algorithm, such aswithout consideration of the spatial neighborhood information of pixels, noise sensitivity and low convergence speed, a suppressed non-local spatial intuitionistic fuzzy c-means image segmentation algorithm is proposed.