ID |
原文 |
译文 |
9794 |
采用多种属性的特征能够更可靠地描述图像中不同物体的特性,提高分割的准确性和可靠性。 |
Use a variety of characteristics of properties can be more reliable to describe the characteristics of different objects in the image, improve the segmentation accuracy and reliability. |
9795 |
定义了加权稀疏度量,即在1-范数中引入权重,权重与数据的相似度成反比,有利于迫使相似的数据尽可能参与到数据的自表示中,从而改善稀疏表示过稀疏并且不稳定的局限性。 |
Defines the weighted sparse measure, by introducing the weight in 1 - norm, weight is inversely proportional to the similarity of data, to force the similar data involved in the data from said as far as possible, so as to improve the limitations of sparse representation had sparse and unstable. |
9796 |
实验结果和客观指标表明,所提方法能有效地分割自然图像,获得的结果更加符合人类视觉感知。 |
Experimental results and objective indicators show that the proposed method can effectively segment natural images, the results obtained more accord with human visual perception. |
9797 |
利用采样反馈控制和轨迹快速重构技术,设计了固定采样反馈和自适应采样反馈两种有限推力远程变轨近最优闭环制导策略。 |
Using rapid sampling feedback control and the trajectory reconstruction technology, design the fixed sampling feedback and adaptive sampling feedback two finite thrust remote orbit near the optimal closed-loop guidance strategy. |
9798 |
建立了空间变轨和交会最优制导数学模型。 |
Established the mathematical model space orbit and SEC optimal guidance. |
9799 |
结合变轨运动方程特征,给出了伪谱优化参数缩减方法和实时性提升策略; |
In combination with characteristics of its movement equation, gives the optimization parameters of pseudo spectral reduction method and the real-time promotion strategy; |
9800 |
基于采样反馈和最优控制理论,利用采样数据进行连续轨迹重构,并将开环最优解进行闭环反馈以更新制导指令。 |
Based on sample feedback and the optimal control theory, continuous trajectory reconstruction using the sampling data, and will open loop optimal solution of the closed loop feedback to update the guidance commands. |
9801 |
仿真结果表明,两种策略在保证任务指标近最优性的同时,可以有效抑制地球扁率J2摄动和计算误差的影响; |
The simulation results show that the two strategies in the guarantee target near the optimality of the at the same time, can effectively restrain the earth oblateness J2 perturbation and the influence of calculation error; |
9802 |
自适应采样策略自主性好、制导精度误差收敛快,但计算量和燃耗偏大,二者使用时需要根据具体任务要求合理选择。 |
Autonomy is good, the adaptive sampling strategy guidance accuracy error converges fast, but the amount of calculation and burn up slants big, both need according to the specific task requirements when using reasonable choice. |
9803 |
在采用OFDM信号实现雷达通信一体化中,通信调制信息会影响一体化波形的模糊函数。 |
In radar communication is realized by using OFDM signal integration, communication modulation waveform information will affect the integration of fuzzy function. |