ID 原文 译文
21245 实验结果证明该文算法在改进C-RAN能量效率和提高资源分配公平性方面的有效性。 The experimental results show that the proposed algorithm is effective in improving the EE and the fairness of resource allocation.
21246 目前各大卫星导航系统均存在伪距偏差问题，该现象不但不能通过差分的方式进行抵消，在进行双频电离层误差修正时还会被进一步放大，对卫星导航系统服务精度的提高已构成严重危害。 Due to the distortions of the broadcasted satellite signals and the inconsistencies of parametersettings for different receivers, the single difference or double difference of pseudo-ranges between two receiversare different for two pair of different receivers. Bias inconsistencies will lead to adverse effects for pseudo-range-based positioning applications. Pseudo-range biases can also hinder carrier-phase ambiguity resolution.
21247 然而目前国内对北斗系统伪距偏差产生机理研究甚少， However, fewer articles deal with pseudo-range biases for BeiDou navigation satellite System (BDS).
21248 为了最大程度降低伪距偏差对我国北斗卫星导航系统影响，该文首先深入并详细研究了伪距偏差产生机理及特点， In order to mitigate the impact of biases on BDS to the greatest extent, the generation mechanisms and characteristics of pseudo-range biases are studied in detail firstly.
21249 在此基础上设计了试验验证方案，利用国内昊平观测站40 m大口径天线，准确测试并评估了所有北斗卫星导航系统(BDS)在轨可视卫星伪距偏差结果。 Then based on this, experimental verification methods aredesigned using Haoping Radio Observatory (HRO) of Chinese Academy of Sciences to observe BDS signals.Pseudo-range biases of all visible BDS satellites are measured and evaluated with high accuracy, using the 40meters dish antenna and modern equipment of HRO.
21250 最后根据试验测试结果，提出针对北斗卫星导航系统的接收机主要参数设置建议，从而能够最大程度上减小伪距偏差问题带来的测距误差和定位误差。 Finally, some important parameters of BDS receivers, such as the correlator spacing and front-end bandwidth, are suggested to mitigate the ranging errors and positioning errors result from pseudo-range biases.
21251 该文的研究成果可为GNSS信号设计及实现、GNSS监测评估及用户终端参数设置提供有价值的参考依据。 The achievements of this paper can provide a worthyreference for GNSS signal designers, GNSS monitoring and assessment and GNSS receiver designers.
21252 在弹载曲线轨迹双基SAR成像中，三轴速度与加速度降低了传统的双基等效斜距模型精度，也使得基于匀速直线平飞轨迹模型的极坐标格式算法(PFA)不再适用。 The traditional bistatic equivalent range model has low accuracy and make the traditional PolarFormat Algorithm (PFA) are inapplicable in missile-borne bistatic Synthetic Aperture Radar (SAR) imaging with curved track due to the existing of three-axis velocity and acceleration.
21253 受双平台加速度引入的空变运动误差影响，传统的分子块补偿方法会造成图像子块间地物景象不连续问题，影响后续的图像匹配应用。 In addition, due to the existing of space-variant motion error introduced by acceleration, the traditional 2-D sub-block compensation method will cause the discontinuities between the image sub-blocks, thus affecting the subsequent image matching application.
21254 针对这些问题，该文提出一种新的双基SAR成像算法——反向滤波PFA算法(BFPFA)， In view of these problems, this paper proposes a Back-Filtering PFA algorithm (BFPFA) which isbased on the Improved Generalized Bistatic Equivalent Range Model (IGBERM).