ID 原文 译文
21035 仿真结果显示：在高斯信道和瑞利衰落信道下，该文设计的SCMA码本的性能均明显优于华为公司提出的SCMA码本和低密度扩频多址接入(LDS-MA)技术。 Simulation results show that the performance of the proposedSCMA codebooks outperforms that of the HUAWEI’ SCMA codebooks and Low Density Signature MultipleAccess (LDS-MA) in both the Gaussian channels and the Rayleigh fading channels.
21036 针对目前对流层延迟修正受限于探空数据不足导致修正效率低的问题，该文结合Saastamoinen和GPT2w模型构建形成组合模型Sa+GPT2w模型， In view of the correction for tropospheric delay is limited by the shortage of sounding data, which leads to the problem that the low correction efficiency, this paper proposes a model named Sa+GPT2w, combining Saastamoinen model with GPT2w model.
21037 通过利用GPT2w模型提供的高精度气象数据，实现中国地区对流层天顶延迟(ZTD)的实时修正，克服对探空数据的依赖，并用实测数据对计算结果进行验证。 In this paper, the real-time correction for ZenithTropospheric Delay (ZTD) over China is realized by using the high-precision meteorological values provided bythe GPT2w model, and the results are verified by the measured data.
21038 以IGS提供的中国地区2015至2017年ZTD时间序列为评估标准时，Sa+GPT2w模型(bias:1.661 cm, RMS:4.711 cm)的精度较同等条件下的Sa+EGNOS, Sa+UNB3m和Hop+GPT2w模型分别提升50.5%, 41.9%和37.1%； Taking the ZTD in 2015-2017 ofInternational GNSS Service(IGS) as a reference, the accuracy of the Sa+GPT2w model (bias: 1.661 cm, RMS:4.711 cm) rises by 50.5%, 41.9% and 37.1%, respectively, relative to the Sa+EGNOS, Sa+UNB3m and theHop+GPT2w models.
21039 以GGOS Atmo-sphere 2017年ZTD数据为标准时，Sa+GPT2w模型(bias:1.551 cm, RMS:4.859 cm)的精度相对同等条件下的另3种模型分别提升49.5%, 38.5%和46.8%； Moreover, using the ZTD from Global Geodetic Observing System (GGOS) in 2017 as astandard, the Sa+GPT2w model (bias: 1.551 cm, RMS: 4.859 cm) improves the accuracy by 49.5%, 38.5% and46.8% relative to other three models, respectively.
21040 最后对Sa+EGNOS, Sa+UNB3m和Sa+GPT2w模型在ZTD修正中误差结果的时空分布特征进行分析。 Finally, this paper analyzes the temporal and spatialdistribution characteristics of the bias and RMS of the above three models.
21041 研究结果可为在中国地区的导航定位、大气折射研究中，应用不同气象参数模型进行ZTD修正的有效性和可能达到的精度提供参考。 The results provide a significant reference for the effectiveness of correction for ZTD by using different meteorological models in the research of navigation and atmospheric refraction over China.
21042 针对萤火虫算法求解复杂优化问题时收敛精度较低的问题，该文提出一种正交反向学习策略，嵌入萤火虫算法，得到一种正交反向学习萤火虫算法。 Firefly Algorithm (FA) may suffer from the defect of low convergence accuracy depending on the complexity of the optimization problem. To overcome the drawback, a novel learning strategy named Orthogonal Opposition Based Learning (OOBL) is proposed and integrated into FA.
21043 正交反向学习策略中，采用重心反向计算，利用群体搜索经验的同时避免搜索依赖坐标； In OOBL, first, the opposite is calculated by the centroid opposition, making full use of the population search experience and avoiding depending on the system of coordinates.
21044 采用正交试验设计，构建部分维上取反向值的正交反向候选解，充分挖掘个体和反向个体在不同维度上的有利信息。 Second, the orthogonal opposite candidate solutions are constructed by orthogonal experiment design, combining the useful information from the individual and itsopposite.