| ID | 原文 | 译文 |
| 6354 | 结果表明,所提方案的频谱效率和BER性能均优于现有的GFDM、索引调制广义频分复用、正交频分复用和滤波器组多载波方案。 | The results show that the spectrum efficiency of the proposed scheme and BER performance is superior to the existing GFDM, index modulation of generalized frequency division multiplexing, multicarrier orthogonal frequency division multiplexing and filter group. |
| 6355 | 针对传统弹道拟合方法需要事先设定拟合方程的函数结构形式且不能很好适应大范围投射条件的问题,提出了一种分组遗传规划的炸弹弹道拟合方法。 | In view of the traditional trajectory fitting method need to set beforehand fitting equation of the function structure and cannot well adapt to the problems of the condition of large range projection, this paper proposes a grouping genetic programming method of bomb ballistic simulation. |
| 6356 | 首先,依据动力学仿真实验得到炸弹在不同投射条件下的弹道样本。 | First of all, based on dynamic simulation experiment to get the bomb ballistic samples under different projection. |
| 6357 | 然后,采用分组遗传规划对样本数据中弹道诸元和投射初值进行输入-输出映射拟合训练,得到了多组弹道拟合方程,并进行了未分组和分组拟合方程式之间的精度和泛化性比较。 | Then, by grouping genetic programming on the sample data of ballistic data to simulate input-output mapping project initial training, got more groups of trajectory fitting equation, and not grouping and grouping fitting equation between the precision and generalization. |
| 6358 | 大量检测验算说明,采用分组遗传规划得到的弹道拟合方程式组具有物理关系明确、拟合精度高、泛化好、实时解算快等特性。 | A large number of testing calculation shows that, by grouping genetic programming to get ballistic fitting equation group has a clear physical relationship, high fitting precision and good generalization, real-time decoding features such as fast. |
| 6359 | 前期发展的全球导航卫星系统(global navigation satellite system,GNSS)双频载波和差联合跟踪算法存在双频信号载噪比不一致情况下双频信号跟踪稳定度和跟踪精度较差问题,对此提出了优化改进的算法。 | The early stage of the development of global navigation satellite system (global navigation satellite system, GNSS) and poor joint dual-frequency carrier tracking algorithm two-frequency signal to noise ratio is inconsistent load two-frequency signal tracking stability and tracking accuracy is poorer, optimization of the improved algorithm are put forward. |
| 6360 | 针对实际应用中共星双频信号存在的信号载噪比不同情况,优化原有双频载波和差联合跟踪环路结构,基于载噪比模型计算GNSS双频信号在双频载波和差联合跟踪环路中的加权值,利用该加权值实现共星双频信号的载波和差联合跟踪。 | For practical application of the communist party of China star two-frequency signals of different carrier to noise ratio, and poor joint optimization of the original dual-band carrier tracking loop structure, based on the carrier to noise ratio model calculation GNSS two-frequency signal in dual-frequency carrier and a weighted value of the joint tracking loop, using the weighted value of star two-frequency signal carrier and poor joint tracking. |
| 6361 | 算法理论分析和仿真结果表明,优化后的基于载噪比模型加权的GNSS双频载波联合跟踪算法更加适用于实际应用条件,能够提高原有算法在双频信号载噪比不一致情况下共星双频信号跟踪稳定性和跟踪精度。 | Algorithm theory analysis and simulation results show that the optimized model based on carrier to noise ratio of weighted GNSS joint dual-frequency carrier tracking algorithm is more suitable for practical application conditions, improves the original algorithm under the condition of dual frequency signal noise ratio not consistent star two-frequency signal tracking stability and tracking accuracy. |
| 6362 | 对于近场散射测试中存在多次耦合目标,从近场数据外推远场雷达散射截面时,需要完备的双站散射信息。 | For near-field scattering tests exist coupling target for many times, from the near field data extrapolating radar scattering cross section, the far field need to complete two stand scattered information. |
| 6363 | 传统的双站散射测试方法中,远场观测点的数目等于扫描面上的天线数目,测量所需时间成倍增加,难以工程化。 | Traditional test method of double station scattering, the far field observation points is equal to the number of scanning antenna number, on the surface of the time needed for measuring multiplied, difficult to engineering. |