ID 原文 译文
16155 针对激光雷达中脉冲同步存在的抖动大和精度低问题开展分析，提出了数字计数和模拟延时相结合的总体方案，采用抖动补偿技术实现抖动消除，模拟电路实现延时的高精度。 The large-jitter and low-precision of pulse synchronization in LIDAR were analyzed.An overall scheme combining digital counting and analog delay was proposed,in which the jitter compensation technology was used to eliminate the jitter,and the high precision of pulse delay was achieved by analog circuit.
16156 通过对研制的脉冲延时发生器实测，抖动和精度分别小于40 ps和3 ps，测试结果表明该脉冲延时发生器能够满足激光雷达高性能同步技术的要求。 The jitter and precision of pulse delay were less than 40 ps and 3 ps respectively according to the test result. The test results also show that the pulse delay generator could meet the requirements of high-performance synchronization in LIDAR.
16157 人脸识别技术易受光照、表情等因素影响。 Recognition rate of face recognition technology is vulnerable to illumination,expression and other factors.
16158 提出了融合改进的局部二值模式（LBP）和梯度方向直方图（HOG）方法提取人脸图形纹理、细节特征，利用列方向压缩的2DPCA+PCA算法对人脸的特征空间进行降维处理，使用2DPCA算法降低了特征维度，解决了仅仅使用PCA方法，由于人脸图像特征维度高而造成求解模型复杂的问题，降低了计算规模，提高了运算速度。 An image method based on the improved Local Binary Pattern(LBP)and Histogram of Oriented Gradient(HOG) for texture and details feature extraction was proposed,and 2DPCA+PCA algorithm of column direction compression was employed to reduce the dimensions of face feature space,so as to solve the problem that the PCA model was complex because of the high dimension of face image features, and to reduce the computing scale and furthermore to improve the computing speed.
16159 结果表明，基于改进的LBP和HOG融合的特征提取具有一定的互补性，与其它的识别算法相比，该改进的算法识别率有了较大的提高，鲁棒性更强。 The testing results of experiments with ORL and Yale face database illustrate that the feature extraction based on the improved LBP and HOG fusion are complementary,and the recognition rate of the improved algorithm has been greatly improved compared with other recognition algorithms.
16160 在热注入法制备全无机钙钛矿CsPbBr3量子点的过程中，增加使用短链的噻吩-3-硼酸，与长链烷基链配体一起形成量子点表面钝化层，被证明是提高量子点稳定性的有效方法。 All-inorganic perovskite CsPbBr3 quantum dots(QDs)was synthesized via hot injection with their surfaces partically passivated with thiophene-3-boronic acid in addition to the commonly used long-chain ligand,which was demonstrated to be effective to improve the stability of the colloids.
16161 由于噻吩-3-硼酸中S原子与量子点表面Pb之间有更强的范德瓦尔斯力，可以在全无机钙钛矿量子点表面形成更加稳定的钝化层，从而有效抑制高温环境下CsPbBr3量子点表面缺陷的产生，以及由此引起的非辐射跃迁过程。 Due to the stronger van der Waals force between thiophene-3-boronic acid and CsPbBr3 QDs arising from the interaction between S in the thiophene ring and surface Pb of the QDs,a more stable passivation layer was formed,which effectively inhibited the of surface traps upon heating.
16162 对比实验表明，在120℃加热70 min的条件下，基于常规的长链配体的CsPbBr3量子点，其荧光强度大幅衰减到初始值的11%，同时PLQY从50.7%下降到4.5%。 The density of surface defect states that was responsible for the non-radiative recombination was prohibited. Comparative study was conducted under 120 oC heating for 70 minutes. The photoluminescence(PL)intensity of the prepared CsPbBr3 quantum dots was greatly reduced to 11% that of the initial value,while PLQY decreased from 50.7% to 4.5%.
16163 基于噻吩-3-硼酸配体表面修饰的CsPbBr3量子点，在相同热处理条件下荧光强度衰减到初始值的51%，相应的PLQY从66.7%下降到32.7%。 For CsPbBr3 quantum dots with thiophene-3-boronic acid treatment,the PL intensity was decreased to 51% the initial value,meanwhile PLQY decreased from 66.7% to 32.7%.
16164 红外光谱证明该新型配体的加入实现了更稳定的量子点表面钝化，从而有效提高了量子点材料的荧光量子效率和热稳定性。 The exchange of surface ligand,as confirmed by FTIR,was for the improved stability of the CsPbBr3 quantum dots,and could lead to higher PLQY and improved thermal stability.